Function vstd::set_lib::lemma_set_intersect_again2
source · pub proof fn lemma_set_intersect_again2<A>(a: Set<A>, b: Set<A>)Expand description
ensures
(a.intersect(b)).intersect(a) =~= a.intersect(b),Taking the intersection of sets a and b and then taking the intersection of the result with a
is the same as taking the intersection of a and b once.