feat: use compact congruence proofs in grind
if applicable
#6458
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This PR adds support for compact congruence proofs in the (WIP)
grind
tactic. ThemkCongrProof
function now verifies whether the congruence proof can be constructed using onlycongr
,congrFun
, andcongrArg
, avoiding the need to generate the more complexhcongr
auxiliary theorems.