[請益] 一題述詞邏輯不會解
我先承認這是作業,實在想不出來所以求助各位大大了> <
因為"存在"打不出來,所以用"E"代替
請證明下列論證的有效性,若是無效,請用解釋法或是展開法說明其無效姓
Ex (Fx→Fa)
/∴ Ex Fx→Fa
請各位神人幫我解惑,謝謝!
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推
05/25 18:30, , 1F
05/25 18:30, 1F
→
05/25 18:31, , 2F
05/25 18:31, 2F
→
05/25 18:32, , 3F
05/25 18:32, 3F
→
05/25 21:05, , 4F
05/25 21:05, 4F
→
05/26 00:16, , 5F
05/26 00:16, 5F
→
05/26 00:17, , 6F
05/26 00:17, 6F
→
05/26 00:18, , 7F
05/26 00:18, 7F
→
05/26 01:19, , 8F
05/26 01:19, 8F
→
05/26 01:21, , 9F
05/26 01:21, 9F
→
05/26 01:48, , 10F
05/26 01:48, 10F
→
05/26 11:12, , 11F
05/26 11:12, 11F
→
05/26 11:14, , 12F
05/26 11:14, 12F
→
05/26 11:14, , 13F
05/26 11:14, 13F
→
05/26 11:15, , 14F
05/26 11:15, 14F
→
05/26 11:16, , 15F
05/26 11:16, 15F
→
05/26 11:17, , 16F
05/26 11:17, 16F
→
05/26 11:17, , 17F
05/26 11:17, 17F