N
the property of many formal systems that the conditional derived from a valid argument by taking the conjunction of the premises as antecedent and the conclusion as consequent is true 演绎定理
[logic]
The articleUSES theprovingofdeductiontheorem to givegeneralprogram of constructiontheorem proving, andaddingapiece ofsimplificationcommand. Theprogram is gotten strictand exercisable.