Compared with Connectives in Natural Language English 中文 Logic not... 不是.… 7 ...and... .并且 Λ ...Or... 或者. V either...or...,but not both 不是.就是. ⊕ if...then... 如果..那么.… if and only if 当且仅当 ←→ For every logic connective,a counterpart having ALMOST the same semantics can be found in natural language. The semantic of a logic connective is rigorous defined by the corresponding TRUTH TABLE.Compared with Connectives in Natural Language English 中文 Logic not… 不是… ¬ …and… …并且… ⋀ …or… …或者… ⋁ either…or…, but not both 不是…就是… ⊕ if…then… 如果…那么… → if and only if 当且仅当 ↔ For every logic connective, a counterpart having ALMOST the same semantics can be found in natural language. The semantic of a logic connective is rigorous defined by the corresponding TRUTH TABLE