relative pseudo-complement

Noun

 * 1)  The residual operation of a Heyting algebra when considered as a residuated lattice whose monoid operation is the meet operation. Equivalently, the relative pseudo-complement of a with respect to b is the supremum of the set of all z such that $$ z \wedge a \leqslant b$$, where $$\wedge$$ denotes the meet operation of the given Heyting algebra.

Usage notes

 * The relative pseudo-complement is analogous to material implication and may be represented by an infix right arrow: $$\rightarrow$$.