示範題-中英對照版。作答時以中文或英文作答皆可 A-1. Something influences something. 有些事物影響有些事物 | Something influences something. 有些事物影響有些事物 | 加入代名詞: | There is at least one thing such that it influences something. 至少有一事物,它影響有些事物 | 代名詞轉變元: | There is at least one thing x such that x influences something. 至少有一事物x ,x影響有些事物 | 量詞符號化: | (∃x)(x influences something) (∃x)(x影響有些事物) | 改寫受詞部份 加入代名詞: | (∃x)(there is at least one thing such that x influences it) (∃x)(至少有一事物,x影響它) | 代名詞轉變元: | (∃x)(there is at least one thing y such that x influences y (∃x)(至少有一事物y,x影響y) | 量詞符號化: | (∃x)(∃y)(x influences y) (∃x)(∃y)(x影響y) | 述詞符號化: | (∃x)( ∃y)Ixy |
B-3 (∃x)[Dx&(∃y)Cxy] | (∃x)[Dx&(∃y)Cxy] | 將述詞還原成自然語句: | (∃x)[x is a dog &(∃y)x chases y] (∃x)[x是狗&(∃y)x追逐y] | 將後面的量詞改寫成半量化語句: | (∃x)[x is a dog & there is at least one thing y such that x chases y] (∃x)[x是狗&(∃y)至少有一事物y,x追逐y] | 將變元y轉成代名詞: | (∃x) [x is a dog & there is at least one thing such that x chases it] (∃x) [x是狗&(∃y)至少有一事物,x追逐它] | 去除代名詞: | (∃x)[x is a dog & x chases something] (∃x) [x是狗&(∃y)x追逐某些東西] | 改寫主詞部份 將量詞改寫成半量化語句: | There is at least one thing x such that x is a dog and x chases something 至少有一事物x,x是狗且x追逐某些東西 | 將變元x轉成代名詞: | There is at least one thing such that it is a dog and it chases something 至少有一事物,它是狗且它追逐某些東西 | 去除代名詞,轉成自然語句: | Some dogs chase something 有些狗追逐某些東西 |
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