{"id":237,"date":"2010-03-20T17:54:00","date_gmt":"2010-03-20T20:54:00","guid":{"rendered":"http:\/\/scienceblogs.com.br\/hypercubic\/2010\/03\/verdade-inconsistente\/"},"modified":"2010-03-20T17:54:00","modified_gmt":"2010-03-20T20:54:00","slug":"verdade-inconsistente","status":"publish","type":"post","link":"https:\/\/www.blogs.unicamp.br\/hypercubic\/2010\/03\/verdade-inconsistente\/","title":{"rendered":">Verdade inconsistente"},"content":{"rendered":"

><\/p>\n

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\"russell40_160px\"<\/a><\/div>\n

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[Bertrand] Russell disse certa vez, durante um jantar: \u201cAh, \u00e9 in\u00fatil falar sobre coisas inconsistentes, pois a partir de uma proposi\u00e7\u00e3o inconsistente voc\u00ea pode provar o que quiser.\u201d Bem, \u00e9 muito f\u00e1cil demonstrar isso matematicamente. Mas, como de costume, Russell era muito mais simp\u00e1tico do que isso. Algu\u00e9m que estava \u00e0 mesa disse: \u201cOra, vamos!\u201d Ele disse: \u201cBem, diga-me uma proposi\u00e7\u00e3o inconsistente\u201d e o homem: \u201cBem, digamos que seja 2=1.\u201d \u201cCerto,\u201d disse Russell, \u201co que voc\u00ea quer que eu prove?\u201d E o homem: \u201cQuero que voc\u00ea me prove que \u00e9 o papa.\u201d \u201cPor que\u201d, respondeu Russell, \u201co papa e eu somos dois, mas dois \u00e9 igual a um; portanto o papa e eu somos um.\u201d<\/div>\n
\u2014 Jacob Bronowski, The Origins of Knowledge and Imagination<\/i> [As origens do conhecimento e da imagina\u00e7\u00e3o<\/i>], 1979 <\/div>\n<\/blockquote>\n
Seja verdade ou n\u00e3o, esse tipo de l\u00f3gica apresentada por Russell durante um jantar \u00e9 bastante conhecido por pol\u00edticos e l\u00edderes religiosos. Diante de mentiras \u2014 formalmente chamadas de proposi\u00e7\u00f5es inconsistentes \u2014, eles s\u00e3o sempre capazes de aparecer com coisas que parecem verdadeiras, mas n\u00e3o s\u00e3o.<\/div>\n
<\/div>\n
imagem original do Bule Voador<\/a><\/i>, que tem uma s\u00e9rie em homenagem a Russell<\/span><\/div>\n","protected":false},"excerpt":{"rendered":"

> [Bertrand] Russell disse certa vez, durante um jantar: \u201cAh, \u00e9 in\u00fatil falar sobre coisas inconsistentes, pois a partir de uma proposi\u00e7\u00e3o inconsistente voc\u00ea pode provar o que quiser.\u201d Bem, \u00e9 muito f\u00e1cil demonstrar isso matematicamente. Mas, como de costume, Russell era muito mais simp\u00e1tico do que isso. Algu\u00e9m que estava \u00e0 mesa disse: \u201cOra, […]<\/p>\n","protected":false},"author":486,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"material-hide-sections":[],"pgc_sgb_lightbox_settings":"","_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"categories":[129,198,254,260],"tags":[],"class_list":["post-237","post","type-post","status-publish","format-standard","hentry","category-filosofia","category-logica","category-paradoxos","category-pessoas"],"yoast_head":"\n>Verdade inconsistente - hypercubic<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.blogs.unicamp.br\/hypercubic\/2010\/03\/verdade-inconsistente\/\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Renato Pincelli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2010\\\/03\\\/verdade-inconsistente\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2010\\\/03\\\/verdade-inconsistente\\\/\"},\"author\":{\"name\":\"Renato Pincelli\",\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/#\\\/schema\\\/person\\\/c7be1e2811d061a75d3b4f4960eb53bd\"},\"headline\":\">Verdade inconsistente\",\"datePublished\":\"2010-03-20T20:54:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2010\\\/03\\\/verdade-inconsistente\\\/\"},\"wordCount\":199,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2010\\\/03\\\/verdade-inconsistente\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/scienceblogs.com.br\\\/hypercubic\\\/files\\\/2011\\\/12\\\/russell40_160px_thumb%5B4%5D.jpg\",\"articleSection\":[\"filosofia\",\"l\u00f3gica\",\"paradoxos\",\"pessoas\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2010\\\/03\\\/verdade-inconsistente\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2010\\\/03\\\/verdade-inconsistente\\\/\",\"url\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2010\\\/03\\\/verdade-inconsistente\\\/\",\"name\":\">Verdade inconsistente - 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