I need to express the assumption that a
, b
, c
and d
are pairwise unequal. I'm currently using card {a, b, c, d} = 4
, but that's a very automation-hostile form - sledgehammer can barely prove a ~= b
. Are there any better options?
distinct [a,b,c,d]
?
It compiles down to exactly the disequalities
Ah, wonderful!
Last updated: Dec 21 2024 at 16:20 UTC