_sympy_ methods for Set_object_binary subclasses #32015
Description
Formal unions, intersections, ...
Depends on #32013
CC: @tscrim @kcrisman @egourgoulhon
Component: interfaces
Author: Matthias Koeppe
Branch/Commit: 689986b
Reviewer: Travis Scrimshaw, Michael Jung
Issue created by migration from https://trac.sagemath.org/ticket/32015