Definition:Alternant


 * Propositional Logic:
 * another name for a disjunct: one of the substatements of a compound statement whose main connective is a disjunction.


 * Linear Algebra:
 * an alternant is a determinant constructed from $n$ functions and $n$ points such that its $\tuple{i, j}$th entry is the value of the $i$th function at the $j$th point, or vice versa.