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feat: Elementarized tactics with motives, congruence, and absurdity #72

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aniva merged 41 commits from goal/mapply into dev 2024-06-12 13:52:46 -07:00
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Pantograph/Tactic/MotivatedApply.lean
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@ -94,11 +94,11 @@ def motivatedApply: Elab.Tactic.Tactic := λ stx => do
-- Create the conduit type which proves the result of the motive is equal to the goal
let conduitType ← info.conduitType newMVars resultant
let goalConduit ← Meta.mkFreshExprMVar conduitType .syntheticOpaque (userName := `conduit)
let goalConduit ← Meta.mkFreshExprMVar conduitType .natural (userName := `conduit)
goal.assign $ ← Meta.mkEqMP goalConduit (mkAppN recursor newMVars)
newMVars := newMVars ++ [goalConduit]
let nextGoals ← newMVars.toList.map (·.mvarId!) |>.filterM (not <$> ·.isAssigned)
let nextGoals := newMVars.toList.map (·.mvarId!)
pure nextGoals
Elab.Tactic.setGoals nextGoals