Rules of Inference
Like all connectives in first-order logic, the biconditional has rules of inference that govern its use in formal proofs.
Read more about this topic: Logical Biconditional
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—Henry David Thoreau (18171862)
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—Louise Bourgeois (b. 1911)
“I shouldnt want you to be surprised, or to draw any particular inference from my making speeches, or not making speeches, out there. I dont recall any candidate for President that ever injured himself very much by not talking.”
—Calvin Coolidge (18721933)