“associativity”的概念、定义、翻译、参考文献-科学参考

单词	associativity
释义	associativity Logic 1. The property that holds of a binary connective $\circ$ in a deductive system $L$ when it is associative, that is, when $(φ \circ ψ) \circ ξ$ and $ψ \circ (φ \circ ξ)$ are logically equivalent in $L$ . 2. The rules of inference for conjunction ( $\land$ ) and disjunction ( $\lor$ ) corresponding to their associativity. $\frac{(φ \land ψ) \land ξ}{ψ \land (φ \land ξ)} \frac{(φ \lor ψ) \lor ξ}{ψ \lor (φ \lor ξ)}$
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