Symbols:Symbolic Logic/Deprecated Symbols/Ampersand

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Deprecated Symbol for Conjunction


$P \mathop \& Q$ means $P$ is true and $Q$ is true.

An alternative to $P \land Q$, which is what is usually used by logicians.

The $\LaTeX$ code for \(P \mathop \& Q\) is P \mathop \& Q  or P \mathop \And Q.

Linguistic Note

The word ampersand is an elision, which evolved via an interesting linguistic process from and per se and.

Its literal meaning is: and (the symbol $\&$) intrinsically (is the word) and.

The symbol $\&$ itself evolved from the Latin et (for and).