8204 | Lewis's 'strict implication' preserved Russell's confusion of 'if...then' with implication [Quine on Russell/Whitehead] |
9359 | Russell's implication means that random sentences imply one another [Lewis,CI on Russell/Whitehead] |
8082 | Where a conditional is purely formal, an implication implies a link between premise and conclusion [Devlin] |
6880 | Strict implication says false propositions imply everything, and everything implies true propositions [Mautner] |
7789 | Necessary implication is called 'strict implication'; if successful, it is called 'entailment' [Girle] |