{"id":103987,"date":"2024-01-01T17:16:25","date_gmt":"2024-01-01T17:16:25","guid":{"rendered":"https:\/\/science-hub.click\/%E7%94%9F%E3%81%BE%E3%82%8C%E3%81%9F%E9%83%A8%E6%97%8F%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A9%B3%E3%81%97%E3%81%8F%E8%A7%A3%E8%AA%AC\/"},"modified":"2024-01-01T17:16:25","modified_gmt":"2024-01-01T17:16:25","slug":"%E7%94%9F%E3%81%BE%E3%82%8C%E3%81%9F%E9%83%A8%E6%97%8F%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A9%B3%E3%81%97%E3%81%8F%E8%A7%A3%E8%AA%AC","status":"publish","type":"post","link":"https:\/\/science-hub.click\/?p=103987","title":{"rendered":"\u751f\u307e\u308c\u305f\u90e8\u65cf\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac"},"content":{"rendered":"<div><div><h2>\u5c0e\u5165<\/h2><p>\u30bb\u30c3\u30c8\u304c\u4e0e\u3048\u3089\u308c\u308b\u3068<div class=\"math-formual notranslate\">$$ {\\mathcal C} $$<\/div>\u540c\u3058\u30bb\u30c3\u30c8<span><i>X<\/i><\/span>\u306e\u90e8\u5206\u3001\u306b\u3088\u3063\u3066<b>\u751f\u6210\u3055\u308c\u305f\u90e8\u65cf<\/b><div class=\"math-formual notranslate\">$$ {\\mathcal C} $$<\/div>\u3092\u542b\u3080\uff08\u5305\u542b\u3068\u3044\u3046\u610f\u5473\u3067\u306e\uff09\u6700\u5c0f\u306e\u90e8\u65cf\u3067\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal C} $$<\/div> \u3002\u7559\u610f\u3057\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\sigma(\\mathcal{C})} $$<\/div> \u3002<\/p><figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"\u751f\u307e\u308c\u305f\u90e8\u65cf\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/jPeuy_h1ffM\/0.jpg\" style=\"width:100%;\"\/><\/figure><h2>\u5b9a\u7fa9<\/h2><h3><span><span><a href=\"https:\/\/science-hub.click\/?p=57227\">\u4e00\u9023<\/a><\/span>\u306e\u30d1\u30fc\u30c4\u306b\u3088\u3063\u3066<span><a href=\"https:\/\/science-hub.click\/?p=103987\">\u751f\u6210\u3055\u308c\u308b\u30c8\u30e9\u30a4\u30d6<\/a><\/span><\/span><\/h3><div><p><strong>\u547d\u984c\u3068<span><a href=\"https:\/\/science-hub.click\/?p=74671\">\u5b9a\u7fa9<\/a><\/span><\/strong><span>\u2014<\/span> <span><i>X \u3092<\/i><\/span>\u96c6\u5408\u3068\u3057\u3001 <div class=\"math-formual notranslate\">$$ {\\mathcal C} $$<\/div> <span><i>X<\/i><\/span>\u306e\u90e8\u5206\u306e\u96c6\u5408\u3002 <span><i>X<\/i><\/span>\u306b\u306f (\u542b\u3081\u308b\u305f\u3081\u306b) \u3088\u308a\u5c0f\u3055\u306a\u90e8\u65cf\u304c\u3042\u308a\u3001\u6b21\u306e\u3082\u306e\u304c\u542b\u307e\u308c\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal C} $$<\/div> \u3002\u305d\u308c\u306f\u306b\u3088\u3063\u3066<b>\u751f\u307f\u51fa\u3055\u308c\u305f\u90e8\u65cf<\/b>\u3068\u547c\u3070\u308c\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\mathcal C} $$<\/div> \u3001\u305d\u3057\u3066\u79c1\u305f\u3061\u306f\u305d\u308c\u306b\u6c17\u3065\u304d\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\sigma(\\mathcal{C})} $$<\/div> \u3002<\/p><\/div><p>\u306e\u5b58\u5728\u3092\u7c21\u5358\u306b\u8a3c\u660e\u3057\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\sigma(\\mathcal{C})} $$<\/div>\u305d\u308c\u3092\u3059\u3079\u3066\u306e\u90e8\u65cf\u306e\u4ea4\u5dee\u70b9\u3068\u3057\u3066\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067<span><i>\u3001<\/i><\/span> <div class=\"math-formual notranslate\">$$ {\\mathcal C} $$<\/div> (\u3053\u306e\u3088\u3046\u306a\u30c8\u30e9\u30a4\u30d6\u304c\u5c11\u306a\u304f\u3068\u3082 1 \u3064\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u4ea4\u5dee\u306b\u306f\u610f\u5473\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001 <span><i>X<\/i><\/span>\u306e\u3059\u3079\u3066\u306e\u90e8\u5206\u3067\u69cb\u6210\u3055\u308c\u308b\u3044\u308f\u3086\u308b\u96e2\u6563\u30c8\u30e9\u30a4\u30d6\u3067\u3059)\u3002<\/p><h3><span>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d5\u30a1\u30df\u30ea\u30fc\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u30c8\u30e9\u30a4\u30d6<\/span><\/h3><div><p><strong>\u5b9a\u7fa9<\/strong><span>\u2014<\/span> <span><i>X \u3092<\/i><\/span>\u30bb\u30c3\u30c8\u3001 <span><i>I \u3092<\/i><\/span>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30bb\u30c3\u30c8\u3068\u3057\u3001\u305d\u308c\u305e\u308c\u3092<div class=\"math-formual notranslate\">$$ {i\\in I} $$<\/div>\u6e2c\u5b9a\u53ef\u80fd\u306a\u7a7a\u9593<div class=\"math-formual notranslate\">$$ {(X_i,\\mathcal{A}_i)} $$<\/div>\u305d\u3057\u3066\u30a2\u30d7\u30ea<div class=\"math-formual notranslate\">$$ {f_i\\,\\colon\\,X\\to X_i} $$<\/div> \u3002<\/p><p>\u5bb6\u65cf\u306b\u3088\u3063\u3066<b>\u751f\u307f\u51fa\u3055\u308c\u305f\u90e8\u65cf\u3092<\/b>\u79c1\u305f\u3061\u306f\u90e8\u65cf\u3068\u547c\u3073\u307e\u3059<div class=\"math-formual notranslate\">$$ {(f_i)_{i\\in I}} $$<\/div>\u76f8\u4e92\u7684\u306a\u30a4\u30e1\u30fc\u30b8\u90e8\u65cf\u306e\u51fa\u4f1a\u3044\u306b\u3088\u3063\u3066\u751f\u307f\u51fa\u3055\u308c\u305f\u5bb6\u65cf<div class=\"math-formual notranslate\">$$ {f_i^{-1}(\\mathcal{A}_i)} $$<\/div> \u3002\u7559\u610f\u3057\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\sigma(f_i, i\\in I).} $$<\/div><\/p><\/div><p>\u6b21\u306e\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306e\u306f\u7c21\u5358\u3067\u3059\u3002<\/p><ul><li>\u751f\u6210\u3055\u308c\u305f\u30c8\u30e9\u30a4\u30d6\u306f\u3001\u3059\u3079\u3066\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<span><i>f<\/i> <sub><i>i \u3092<\/i><\/sub><\/span>\u540c\u6642\u306b\u6e2c\u5b9a\u53ef\u80fd\u306b\u3059\u308b\u6700\u5c0f\u306e\u30c8\u30e9\u30a4\u30d6\u3067\u3059\u3002<\/li><\/ul><ul><li>\u6ce8\u76ee\u3059\u308b<div class=\"math-formual notranslate\">$$ {\\mathcal A=\\sigma(f_i, i\\in I)} $$<\/div> \u3001\u3042\u3089\u3086\u308b\u7528\u9014\u306b\u5bfe\u3057\u3066\u3001\u6e2c\u5b9a\u53ef\u80fd\u306a\u7a7a\u9593\u306e<span><i>g<\/i><\/span> <div class=\"math-formual notranslate\">$$ {(Y,\\mathcal{B})} $$<\/div>\u306b\u5411\u304b\u3063\u3066<div class=\"math-formual notranslate\">$$ {(X,\\mathcal{A})} $$<\/div> \u3001 <span><i>g \u306f<\/i><\/span>\u3001\u305d\u308c\u305e\u308c\u306e\u5834\u5408\u306b\u306e\u307f\u6e2c\u5b9a\u53ef\u80fd\u3067\u3059\u3002 <div class=\"math-formual notranslate\">$$ {f_i\\circ g} $$<\/div>\u30d0\u30e9\u30b9\u30c8\u3002<\/li><\/ul><h2>\u518d\u4ed5\u4e0a\u3052\u3055\u308c\u305f\u69cb\u9020<\/h2><p><span><a href=\"https:\/\/science-hub.click\/?p=17112\">\u8d85\u6709\u9650\u56de\u5e30<\/a><\/span>\u69cb\u6210\u6cd5\u306b\u3088\u308a\u3001\u3088\u308a\u4e00\u822c\u7684\u306b\u306f\u3001\u90e8\u54c1\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308b\u30c8\u30e9\u30a4\u30d6\u306e\u8a18\u8ff0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{C}} $$<\/div> \u3002\u3053\u308c\u306f 1898 \u5e74\u306b\u30a8\u30df\u30fc\u30eb \u30dc\u30ec\u30eb\u306b\u3088\u3063\u3066\u3001\u4eca\u65e5\u30dc\u30ec\u30ea\u30a2\u65cf\u3068\u547c\u3070\u308c\u308b\u5bb6\u65cf\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306b\u9069\u7528\u3055\u308c\u307e\u3057\u305f\u3002<\/p><p>\u305d\u308c\u3092\u8aac\u660e\u3059\u308b\u305f\u3081\u306b\u3001\u307e\u305a\u6b21\u306e\u3088\u3046\u306a\u8868\u8a18\u3092\u3057\u307e\u3057\u3087\u3046\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}} $$<\/div><span><i>\u30bb\u30c3\u30c8<\/i><\/span>\u306e\u4e00\u90e8\u306e\u30bb\u30c3\u30c8<div class=\"math-formual notranslate\">$$ {\\mathcal{F}_{\\sigma}} $$<\/div> \uff5e\u306e\u8981\u7d20\u306e\u53ef\u7b97\u548c\u96c6\u5408\u306e\u96c6\u5408<div class=\"math-formual notranslate\">$$ {\\mathcal{F}} $$<\/div>\u305d\u3057\u3066<div class=\"math-formual notranslate\">$$ {\\mathcal{F}_{\\delta}} $$<\/div>\u53ef\u7b97\u4ea4\u5dee\u70b9\u306e\u30bb\u30c3\u30c8\u3002<\/p><p>\u6700\u521d\u306e\u30a2\u30a4\u30c7\u30a2\u306f\u3001\u6c7a\u5b9a\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u5168\u4f53\u304b\u3089\u59cb\u3081\u308b<div class=\"math-formual notranslate\">$$ {\\mathcal{F}_0} $$<\/div>\u306e\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\mathcal{C}} $$<\/div>\u304a\u3088\u3073\u305d\u306e\u88dc\u5b8c\u7269\u3002\u751f\u6210\u3055\u308c\u305f\u30c8\u30e9\u30a4\u30d6\u306e\u65b0\u3057\u3044\u8981\u7d20\u3092\u69cb\u7bc9\u3059\u308b\u306b\u306f\u3001\u30af\u30e9\u30b9\u5185\u306b\u51fa\u73fe\u3059\u308b\u90e8\u5206\u306b\u9069\u7528\u3057\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_0} $$<\/div>\u53ef\u7b97\u548c\u96c6\u5408\u3068\u53ef\u7b97\u7a4d\u96c6\u5408\u306e\u6f14\u7b97: \u3057\u305f\u304c\u3063\u3066\u3001\u65b0\u3057\u3044\u30af\u30e9\u30b9\u304c\u5f97\u3089\u308c\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_1} $$<\/div> \u3002\u3092\u914d\u7f6e\u3057\u3066\u64cd\u4f5c\u3092\u518d\u5ea6\u958b\u59cb\u3057\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\mathcal{F}_2=(\\mathcal{F}_{1})_{\\sigma}\\cup(\\mathcal{F}_{1})_{\\delta}} $$<\/div>\u306a\u3069\u3001\u8a98\u5c0e\u306b\u3088\u3063\u3066\u3002\u6210\u9577\u3092\u7d9a\u3051\u308b\u30b9\u30a4\u30fc\u30c8\u306e\u518d\u4f1a\u3092\u671f\u5f85\u3059\u308b\u4eba\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_n} $$<\/div>\u3068\u3044\u3046\u8cea\u554f\u306b\u7b54\u3048\u307e\u3059\u3002\u660e\u3089\u304b\u306b\u7a7a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_n} $$<\/div>\u76f8\u88dc\u7684\u3067\u5b89\u5b9a\u3001\u51fa\u4f1a\u3044\u3084\u7121\u9650\u4ea4\u5dee\u9001\u4fe1\u306e\u52d5\u4f5c<div class=\"math-formual notranslate\">$$ {\\mathcal{F}_n} $$<\/div>\u3067<div class=\"math-formual notranslate\">$$ {\\mathcal{F}_{n+1}} $$<\/div> \u3002\u3057\u304b\u3057\u3001\u3053\u306e\u6700\u5f8c\u306e\u70b9\u306f\u3001\u5f7c\u3089\u304c\u4f1a\u8b70\u3092\u6d3e\u9063\u3059\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_n} $$<\/div>\u305d\u308c\u81ea\u4f53: \u30bb\u30c3\u30c8\u306e\u53ef\u80fd\u306a\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046<div class=\"math-formual notranslate\">$$ {(A_i)_{i\\in\\N^*}} $$<\/div>\u3053\u3053\u3067\u3001\u5404<span><i>A<\/i> <sub><i>i \u306f<\/i><\/sub><\/span>\u6b21\u306e\u8981\u7d20\u3067\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_i\\setminus\\mathcal{F}_{i-1}} $$<\/div> \u3002\u305d\u306e\u51fa\u4f1a\u3044\u3084\u4ea4\u5dee\u70b9\u304c\u3044\u305a\u308c\u304b\u306e\u5834\u6240\u306b\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u306f\u4f55\u3082\u3042\u308a\u307e\u305b\u3093\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_n} $$<\/div> \u3002<\/p><p>\u305f\u3060\u3057\u3001\u3053\u306e\u30a2\u30a4\u30c7\u30a2\u306f\u5229\u7528\u3067\u304d\u307e\u3059\u304c\u3001\u8d85\u6709\u9650\u56de\u5e30\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u69cb\u7bc9\u3092\u3055\u3089\u306b\u63a8\u9032\u3059\u308b\u3053\u3068\u304c\u6761\u4ef6\u3068\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u624b\u9806\u306b\u5f93\u3063\u3066\u3001\u5404\u5e8f\u6570<span>\u03b1<\/span>\u306b\u5bfe\u3057\u3066<span>\u03a9<\/span>\u306e\u90e8\u5206\u306e\u30bb\u30c3\u30c8\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002 <\/p><ul><li><div class=\"math-formual notranslate\">$$ {\\mathcal{F}_0} $$<\/div>\u306e\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u308b\u96c6\u5408\u3067\u3059<div class=\"math-formual notranslate\">$$ {\\mathcal{C}} $$<\/div>\u304a\u3088\u3073\u305d\u306e\u88dc\u5b8c\u7269\u3002 ;<\/li><\/ul><ul><li><span><a href=\"https:\/\/science-hub.click\/?p=95765\">\u4efb\u610f\u306e<\/a><\/span>\u5e8f\u6570<span>\u03b1<\/span>\u306b\u5bfe\u3057\u3066\u3001 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_{\\alpha+1}=(\\mathcal{F}_{\\alpha})_{\\sigma}\\cup(\\mathcal{F}_{\\alpha})_{\\delta}} $$<\/div> ;<\/li><\/ul><ul><li>\u4efb\u610f\u306e\u6975\u9650\u9806\u5e8f<span>\u03b2<\/span>\u306b\u5bfe\u3057\u3066\u3001 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_{\\beta}=\\bigcup_{\\alpha&lt;\\beta}\\mathcal{F}_{\\alpha}} $$<\/div> \u3002<\/li><\/ul><p>\u6b21\u306b\u3001\u6700\u521d\u306e\u975e\u53ef\u7b97\u5e8f\u6570\u3068\u3057\u3066<span>\u03c9 <sub>1 \u3092<\/sub><\/span>\u8868\u3059\u3068\u3001\u6b21\u306e\u3053\u3068\u304c\u7c21\u5358\u306b\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002 <\/p><center><div class=\"math-formual notranslate\">$$ {\\sigma(\\mathcal{C})=\\bigcup_{\\alpha &lt;\\omega_1}F_\\alpha.} $$<\/div><\/center><ul><li>\u610f\u5473\u3078\u306e\u5305\u542b<div class=\"math-formual notranslate\">$$ {\\supset} $$<\/div>\u306f\u7c21\u5358\u3067\u3059 &#8211; \u8d85\u9650\u518d\u5e30\u306b\u3088\u3063\u3066\u3001\u4efb\u610f\u306e\u5e8f\u6570<span>\u03b1<\/span>\u306b\u3064\u3044\u3066\u3001 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_{\\alpha}} $$<\/div>\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\sigma(\\mathcal{C})} $$<\/div> \u3002\u3057\u305f\u304c\u3063\u3066\u5168\u4f53<div class=\"math-formual notranslate\">$$ {\\bigcup_{\\alpha &lt;\\omega_1}F_\\alpha} $$<\/div>\u3082\u3067\u3059\u3002<\/li><\/ul><ul><li>\u610f\u5473\u3068\u3057\u3066\u306f<div class=\"math-formual notranslate\">$$ {\\subset} $$<\/div> \u3001\u79c1\u305f\u3061\u306f\u305d\u308c\u306b\u6c17\u3065\u304d\u307e\u3059<div class=\"math-formual notranslate\">$$ {\\mathcal{C}\\subset\\mathcal{F}_0\\subset\\bigcup_{\\alpha &lt;\\omega_1}F_\\alpha} $$<\/div>\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u5f8c\u8005\u306e\u30bb\u30c3\u30c8\u81ea\u4f53\u304c\u90e8\u65cf\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308c\u3070\u3001\u6b21\u306e\u3082\u306e\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3067\u304d\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\sigma(\\mathcal{C})} $$<\/div> \u3002\u3057\u304b\u3057\u3001\u305d\u308c\u306f\u660e\u3089\u304b\u306b\u7a7a\u3067\u306f\u306a\u304f\u3001\u76f8\u88dc\u6027\u306b\u3088\u3063\u3066\u5b89\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_{\\alpha}} $$<\/div> (\u9806\u5e8f\u5f8c\u7d9a\u3078\u306e\u79fb\u884c\u306b\u30c9\u30fb\u30e2\u30eb\u30ac\u30f3\u306e\u6cd5\u5247\u3092\u4f7f\u7528\u3059\u308b\u3001\u8d85\u9650\u56de\u5e30\u304c\u7c21\u5358)\u3001\u53ef\u7b97\u7d50\u5408\u306b\u3088\u308b\u5b89\u5b9a\u6027\u306e\u307f\u306b\u5c11\u3057\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u3060\u304b\u3089\u3069\u3061\u3089\u304b<div class=\"math-formual notranslate\">$$ {(A_i)_{i\\in\\N}} $$<\/div>\u306e\u4e00\u9023\u306e\u8981\u7d20<div class=\"math-formual notranslate\">$$ {\\bigcup_{\\alpha &lt;\\omega_1}F_\\alpha} $$<\/div> ;\u5404<span><i>i<\/i><\/span>\u306b\u3064\u3044\u3066\u3001 <span>\u03b1 <sub><i>i \u3092\u6b21\u306e\u3088\u3046\u306a\u6700\u5c0f\u306e\u5e8f\u6570\u3068\u3057\u3066<\/i><\/sub><\/span>\u8868\u3057\u307e\u3059\u3002 <div class=\"math-formual notranslate\">$$ {A_i\\in F_{\\alpha_i}} $$<\/div> \u3001\u305d\u3057\u3066\u6700\u5f8c\u306b\u5165\u308c\u307e\u3057\u3087\u3046<div class=\"math-formual notranslate\">$$ {\\beta=\\bigcup_{i\\in\\N}\\alpha_i} $$<\/div> \u3002\u53ef\u7b97\u5e8f\u6570\u306e\u53ef\u7b97\u548c\u96c6\u5408\u3067\u3042\u308b<span>\u03b2 \u306f<\/span>\u3001\u305d\u308c\u81ea\u4f53\u304c\u53ef\u7b97\u5e8f\u6570\u3067\u3059\u3002\u3053\u308c\u3092\u691c\u8a3c\u3059\u308b\u306e\u306f\u7c21\u5358\u3067\u3059\u3002 <div class=\"math-formual notranslate\">$$ {\\bigcup_{i\\in\\N}A_i\\in\\mathcal{F}_{\\beta+1}\\subset\\bigcup_{\\alpha &lt;\\omega_1}F_\\alpha} $$<\/div> \u3002\u53ef\u7b97\u7d50\u5408\u306b\u3088\u308b\u5b89\u5b9a\u6027\u304c\u8a3c\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li><\/ul><p> <span><i>X \u304c<\/i><\/span>\u8a08\u5316\u53ef\u80fd\u306a<span><a href=\"https:\/\/science-hub.click\/?p=101419\">\u4f4d\u76f8\u7a7a\u9593<\/a><\/span>\u3067\u3042\u308a\u3001 <div class=\"math-formual notranslate\">$$ {\\mathcal{C}} $$<\/div> <span><i>X<\/i><\/span>\u4e0a\u306e\u30c8\u30dd\u30ed\u30b8\u3067\u306f\u3001\u3053\u306e\u69cb\u9020\u306b\u306f\u5909\u5f62\u304c\u8a8d\u3081\u3089\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u4e0a\u8a18\u306e\u624b\u9806\u306b\u5f93\u3063\u3066\u5b9a\u7fa9\u3059\u308b\u5834\u5408\u306e\u3088\u3046\u306b\u3001\u958b\u3068\u9589\u3092\u6df7\u5408\u3057\u3066\u7e70\u308a\u8fd4\u3057\u3092\u521d\u671f\u5316\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_0} $$<\/div> \u3002\u5b9f\u969b\u3001metrizability \u306f\u3001\u9589\u3058\u305f\u3082\u306e\u306f\u3059\u3079\u3066 G <sub>\u03b4<\/sub> (\u305d\u3057\u3066\u958b\u3044\u305f\u3082\u306e\u306f\u3059\u3079\u3066 F <sub>\u03c3<\/sub> ) \u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306b\u6f38\u5316\u5f0f\u3092\u521d\u671f\u5316\u3059\u308b\u3068\u3001 <div class=\"math-formual notranslate\">$$ {\\mathcal{F}_0=\\mathcal{C}} $$<\/div>\u3059\u3050\u306b\u9589\u5e97\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u3065\u304d\u307e\u3057\u305f<div class=\"math-formual notranslate\">$$ {\\mathcal{F}_1} $$<\/div> ;\u3082\u3061\u308d\u3093\u3001\u9589\u3058\u305f\u521d\u671f\u5316\u306e\u30bb\u30c3\u30c8\u304b\u3089\u5bfe\u79f0\u7684\u306b\u521d\u671f\u5316\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089 2 \u3064\u306e\u4e26\u5217\u53cd\u5fa9\u3092\u5171\u540c\u3067\u691c\u8a0e\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u6a19\u6e96\u5316\u3055\u308c\u305f\u8868\u8a18\u6cd5\u304c\u5c0e\u5165\u3055\u308c\u3001\u3053\u308c\u3089\u306e\u6210\u9577\u3059\u308b\u30af\u30e9\u30b9\u7fa4\u304c\u8a18\u8ff0\u7684\u96c6\u5408\u8ad6\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u308c\u304c\u30dc\u30ec\u30eb\u968e\u5c64\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p><\/div><figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"\u751f\u307e\u308c\u305f\u90e8\u65cf\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/ngGZwAbb3Tc\/0.jpg\" style=\"width:100%;\"\/><\/figure><h2 class=\"ref_link\">\u53c2\u8003\u8cc7\u6599<\/h2><ol><li><a class=\"notranslate\" href=\"https:\/\/ca.wikipedia.org\/wiki\/Tribu\">Tribu \u2013 catalan<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/de.wikipedia.org\/wiki\/Tribu\">Tribu \u2013 allemand<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/en.wikipedia.org\/wiki\/Tribu\">Tribu \u2013 anglais<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/es.wikipedia.org\/wiki\/Tribu_(desambiguaci%C3%B3n)\">Tribu (desambiguaci\u00f3n) \u2013 espagnol<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/eu.wikipedia.org\/wiki\/Tribu_(argipena)\">Tribu (argipena) \u2013 basque<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/oc.wikipedia.org\/wiki\/Trib%C3%BA\">Trib\u00fa \u2013 occitan<\/a><\/li><\/ol><\/div>\n<div class=\"feature-video\">\n <h2>\n  \u751f\u307e\u308c\u305f\u90e8\u65cf\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u30fb\u95a2\u9023\u52d5\u753b\n <\/h2>\n <div class=\"video-item\">\n  \n  <figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\">\n   <div class=\"wp-block-embed__wrapper\">\n    <iframe loading=\"lazy\" title=\"\u3010\u83ef\u65cf\u3068\u306f\u4f55\u304b\uff1f\u3011\u4e0a\u7d1a\u56fd\u6c11\u306f\u5b9f\u5728\u3057\u305f\uff01\uff1f\u660e\u6cbb\u30fb\u5927\u6b63\u30fb\u662d\u548c\u306b\u5b58\u5728\u3057\u305f\u65e5\u672c\u306e\u8cb4\u65cf\u306e\u30e4\u30d0\u3044\u5b9f\u614b\u306b\u3064\u3044\u3066\u30bc\u30ed\u304b\u3089\u89e3\u8aac\uff01\u3000\u83ef\u65cf | \u8eab\u5206 | \u4e0a\u7d1a\u56fd\u6c11\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/9t1afGnTyY4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n   <\/div>\n  <\/figure>\n  \n <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5c0e\u5165 \u30bb\u30c3\u30c8\u304c\u4e0e\u3048\u3089\u308c\u308b\u3068 $$ {\\mathcal C} $$ \u540c\u3058\u30bb\u30c3\u30c8X\u306e\u90e8\u5206\u3001\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u90e8\u65cf $$ {\\mathcal C} $$ \u3092\u542b\u3080\uff08\u5305\u542b\u3068\u3044\u3046\u610f\u5473\u3067\u306e\uff09\u6700\u5c0f\u306e\u90e8\u65cf\u3067\u3059\u3002 $$ {\\mathcal  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":103988,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img.youtube.com\/vi\/jQ1BzfEpnwg\/0.jpg","fifu_image_alt":"\u751f\u307e\u308c\u305f\u90e8\u65cf\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac","footnotes":""},"categories":[5],"tags":[90471,90470,11,13,14,10,12,8,16,15,9,14827],"class_list":["post-103987","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dictionary","tag-charlieu","tag-abbaye-de-charlieu","tag-techniques","tag-technologie","tag-news","tag-actualite","tag-dossier","tag-definition","tag-sciences","tag-article","tag-explications","tag-tribu"],"_links":{"self":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts\/103987"}],"collection":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=103987"}],"version-history":[{"count":0,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts\/103987\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/media\/103988"}],"wp:attachment":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=103987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=103987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=103987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}