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InequalityEquality

 Property

Summary

Rules about equalities and inequalities.

Remarks

Run by the matcher rather than by the switch —
InequalityEquality, where its sixty-five arms are
sixty-five rules: this set writes out shapes rather than orientations, so there is
nothing for a commutative pattern to collapse. What it gains instead is that the two
De Morgan folds and the two excluded-middle rules say what they need of the bindings,
which a switch arm says in a guard beside the shape.

























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