Submitted by György Chityil ... on Fri, 01/19/2018 - 20:43 Hierarchy: NounDescription: {{logic}} An "if and only if" conditional wherein the truth of each term depends on the truth of the otherNgram: biconditionalNgram Text: biconditionalSource: WiktionaryIssue: 0Wiktionary tag: logicNgram Count: 1