https://bgk-photo.cdn.bcebos.com/7c1ed21b0ef41bd5baac739541da81cb38db3dd7.jpg数理逻辑复习题⏺(7)
https://bgk-photo.cdn.bcebos.com/7c1ed21b0ef41bd5baac739541da81cb38db3dd7.jpg数理逻辑复习题⏺(7)
发布时间：2025-07-29 11:32:52
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推荐参考答案 (
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答案：证明:(1)
P(假设前提)(2)
T (1)(3)
T(2)(化简律)(4)
T(3)ES(5)
P(6)
T (5)(7) T(6)US(8)
T (4). (7) (假言推理)(9) 
T (2) (化简律)(10)
T(9)US(11)
T (8) (10) (合取引入)由(11)得出矛盾式,故
为原前提的有效结论
P(假设前提)(2) T (1)(3) T(2)(化简律)(4) T(3)ES(5) P(6) T (5)(7) T(6)US(8) T (4). (7) (假言推理)(9) T (2) (化简律)(10) T(9)US(11) T (8) (10) (合取引入)由(11)得出矛盾式,故为原前提的有效结论
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