biconditional
noun
bi·con·di·tion·al
ˌbī-kən-ˈdi-sh(ə-)nəl 
: a relation between two propositions that is true only when both propositions are simultaneously true or false see Truth Table
Cite this Entry
“Biconditional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biconditional. Accessed 21 Apr. 2025.
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