In https://github.com/sympy/sympy/pull/26399 there is proposal to allow `subs` to recognize `Eq` so ` x.subs(x, 1) = x.subs( Eq(x, 1) ) = x.subs( [ Eq(x, 1) ] ) = 1` but `x.subs(Eq(1, x)) = x`.
It would be good to see if there is any strong senitment and rationale for or against this. In favor, `Eq` is an immutable ordered container like Tuple (and Tuple is recognized): `x.subs([Tuple(x,1)]) = 1`. It seems like a natural way to pass the information and doesn't require the user to know about `args` in order to pass it as `Eq(x,1).args` (as is currently the case. Other comments are in the PR link given above. /c -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/f38dee22-4249-4c3f-ac77-22a34a2f7e23n%40googlegroups.com.
