existential introduction造句

例句与造句

1. This is an informal version of the logical rule known as existential introduction ( also known as " particularisation " or " existential generalization " ).
2. "Existential introduction " (  " I ) concludes that, if the propositional function is known to be true for a particular element of the domain of discourse, then it must be true that there exists an element for which the proposition function is true.
3. It's difficult to find existential introduction in a sentence. 用existential introduction造句挺难的