看板 Philo-08 關於我們 聯絡資訊
大家好,雖然我是5566,但是讀邏輯的熱情絕對不會輸給各位。 首先,是關於Consistency和Validity的問題, 我作夢夢到,在今天的補救課程中,有些人分不清楚sentence和argument的區別, 而sentence和argument又和consistency和validity有相當大的關係, 在此就一併說明。 首先,區分兩個問題: Is such and such a set of beliefs or sentences consistent? Is such and such an argument valid? 看的出sentence和argument哪裡不同了嗎? For a set of sentences to be consistent, there must be a model for all the sentences to be true. For a set of sentences to be inconsistent, there must be no model for all the sentences to be true. A valid argument is one which when all the premises are true, the conclusion must not be false. 如果還需要更清楚的例子與分析,請見以下網址: http://logic.philosophy.ox.ac.uk/tutorial1/tut1-01.htm http://logic.philosophy.ox.ac.uk/tutorial1/Tut1-07.htm 祝大家寫作業順利。 加入56,就是現在! -- ╭██◣─██◣─██◣─██◣  │▌ -^^ .--. ^^; _._ -vv-  │████ ████ ████ ████ ◣◢ ◣◢ ◣◢ ◣◢ ◣◢  │ █ █ ▌ █ ▌ █  ┼████─████─████─████ ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.166.97.186 ※ 編輯: sindarin5566 來自: 218.166.97.186 (09/19 00:13) ※ 編輯: sindarin5566 來自: 218.166.97.186 (09/19 00:14)
sindarin:專業的56 09/19 00:17
mhgww: 專業的56 09/19 00:19
blackmajisha:的56 09/19 00:26
buchacha:專業的56 09/19 00:35
dirtymosher:業的56 09/19 00:38
jerrychang79:推5566 09/20 11:46