進階三段邏輯題 - 推理遊戲
By Quintina
at 2009-08-17T02:41
at 2009-08-17T02:41
Table of Contents
※ 引述《BGirlAlu (黃后)》之銘言:
: : 前提:
: : 1. Some Little Dog are not Mean Animals
: : 2. All Dogs are Animals
: : 結論:
: : Some dogs are mean
: : 請問這樣推論是否合理?
: : 網路上正確解答是 "不合理"
: : 理由是:
: : Minimal missing premise:
: : It exists something that is dog and mean or dog and not animal
: 我會這樣畫:
: ┌──────────┐
: │animals │
: │┌────────┐│
: ││dogs ││
: ││┌──────┐││
: │││little dog │││
: │││┌────┐│││
: ││││not mean││││
: │││└────┘│││
: ││└──────┘││
: │└────────┘│
: └──────────┘
這樣畫也不對
為何所有not mean的都是little dog?
前提:
1. Some Little Dog are not Mean Animals
2. All Dogs are Animals
結論:
Some dogs are mean
結論的反面敘述為 All dogs are not mean
此反面敘述也能通過前提1.和2.的檢驗
所以結論非恆真
推論有誤!
--
: : 前提:
: : 1. Some Little Dog are not Mean Animals
: : 2. All Dogs are Animals
: : 結論:
: : Some dogs are mean
: : 請問這樣推論是否合理?
: : 網路上正確解答是 "不合理"
: : 理由是:
: : Minimal missing premise:
: : It exists something that is dog and mean or dog and not animal
: 我會這樣畫:
: ┌──────────┐
: │animals │
: │┌────────┐│
: ││dogs ││
: ││┌──────┐││
: │││little dog │││
: │││┌────┐│││
: ││││not mean││││
: │││└────┘│││
: ││└──────┘││
: │└────────┘│
: └──────────┘
這樣畫也不對
為何所有not mean的都是little dog?
前提:
1. Some Little Dog are not Mean Animals
2. All Dogs are Animals
結論:
Some dogs are mean
結論的反面敘述為 All dogs are not mean
此反面敘述也能通過前提1.和2.的檢驗
所以結論非恆真
推論有誤!
--
Tags:
推理遊戲
All Comments
By Doris
at 2009-08-18T04:17
at 2009-08-18T04:17
By Jacob
at 2009-08-19T23:56
at 2009-08-19T23:56
Related Posts
數列一題
By Mary
at 2009-08-16T17:51
at 2009-08-16T17:51
數列一題
By Lauren
at 2009-08-16T14:18
at 2009-08-16T14:18
重力火車
By Kelly
at 2009-08-15T06:41
at 2009-08-15T06:41
重力火車
By Daniel
at 2009-08-12T01:35
at 2009-08-12T01:35
易如反掌
By Sarah
at 2009-08-12T01:05
at 2009-08-12T01:05