pub fn fun_ext_2<A1, A2, B>(f1: FnSpec<(A1, A2), B>, f2: FnSpec<(A1, A2), B>)
👎Deprecated: use f1 =~= f2 or f1 =~~= f2 instead
Expand description
requires
forall |x1: A1, x2: A2| f1(x1, x2) == f2(x1, x2),
ensuresf1 == f2,
DEPRECATED: use f1 =~= f2 or f1 =~~= f2 instead.
See fun_ext