InnerEvalable(A, B)ΒΆ

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This category provides eval operations. A domain may belong to this category if it is possible to make evaluation\ ``'' substitutions. The difference between this and Evalable is that the operations in this category specify the substitution as a pair of arguments rather than as an equation.

eval: (%, A, B) -> %

eval(f, x, v) replaces x by v in f.

eval: (%, List A, List B) -> %

eval(f, [x1, ..., xn], [v1, ..., vn]) replaces xi by vi in f.