{"id":1869,"date":"2020-12-05T19:17:44","date_gmt":"2020-12-06T00:17:44","guid":{"rendered":"http:\/\/josmfs.net\/?p=1869"},"modified":"2024-04-08T11:06:17","modified_gmt":"2024-04-08T15:06:17","slug":"do-i-avoid-kangaroos","status":"publish","type":"post","link":"https:\/\/josmfs.net\/wordpress\/2020\/12\/05\/do-i-avoid-kangaroos\/","title":{"rendered":"Do I Avoid Kangaroos?"},"content":{"rendered":"

\"\"This is a fun logic puzzle from one of Ian Stewart’s many math collections.\u00a0 I discovered that the problem actually is basically one of Lewis Carroll\u2019s examples from an 1896 book:<\/p>\n

    \n
  1. The only animals in this house are cats.<\/li>\n
  2. Every animal that loves to gaze at the moon is suitable for a pet.<\/li>\n
  3. When I detest an animal, I avoid it.<\/li>\n
  4. No animals are meat-eaters, unless they prowl by night.<\/li>\n
  5. No cat fails to kill mice.<\/li>\n
  6. No Animals ever take to me, except those in this house.<\/li>\n
  7. Kangaroos are not suitable for pets.<\/li>\n
  8. Only meat-eaters kill mice.<\/li>\n
  9. I detest animals that do not take to me.<\/li>\n
  10. Animals that prowl at night love to gaze at the moon.<\/li>\n<\/ol>\n

    If all these statements are correct, do I avoid kangaroos, or not?<\/p>\n

    Answer<\/a>.<\/p>\n

    See Do I Avoid Kangaroos?<\/a> for solutions.<\/p>\n\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    This is a fun logic puzzle from one of Ian Stewart’s many math collections.\u00a0 I discovered that the problem actually is basically one of Lewis Carroll\u2019s examples from an 1896 book: The only animals in this house are cats. Every animal that loves to gaze at the moon is suitable for a pet. When I […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[207,172,174],"class_list":["post-1869","post","type-post","status-publish","format-standard","hentry","category-puzzles-and-problems","tag-ian-stewart","tag-lewis-carroll","tag-logic"],"_links":{"self":[{"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/posts\/1869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/comments?post=1869"}],"version-history":[{"count":5,"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/posts\/1869\/revisions"}],"predecessor-version":[{"id":3718,"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/posts\/1869\/revisions\/3718"}],"wp:attachment":[{"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/media?parent=1869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/categories?post=1869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/josmfs.net\/wordpress\/wp-json\/wp\/v2\/tags?post=1869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}