c45a6a93f9
First part of #5015, using emoji variant of unicode symbols for ✅️,❌️,💥️. --- (Partially) closes #5015
24 lines
922 B
Text
24 lines
922 B
Text
variable (n v₁ v₂) (hv₁: v₁ < n + 1) (hv₂: v₂ < n + 1)
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theorem foo (_: ¬ Fin.mk v₂ hv₂ = Fin.mk v₁ hv₁ ): True := trivial
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/--
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info: [Meta.Tactic.simp.unify] eq_self:1000, failed to unify
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?a = ?a
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with
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⟨v₂, hv₂⟩ = ⟨v₁, hv₁⟩
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[Meta.Tactic.simp.rewrite] Fin.mk.injEq:1000, ⟨v₂, hv₂⟩ = ⟨v₁, hv₁⟩ ==> v₂ = v₁
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[Meta.Tactic.simp.unify] eq_self:1000, failed to unify
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?a = ?a
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with
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v₂ = v₁
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[Meta.Tactic.simp.discharge] Nat.ne_of_gt discharge ✅️
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v₁ < v₂
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[Meta.Tactic.simp.rewrite] hv:1000, v₁ < v₂ ==> True
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[Meta.Tactic.simp.rewrite] Nat.ne_of_gt:1000, v₂ = v₁ ==> False
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-/
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#guard_msgs in
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set_option trace.Meta.Tactic.simp true in
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example (hv: v₁ < v₂) : True := foo n v₁ v₂ ‹_› ‹_› (by simp (config := { decide := true }) only [hv, Fin.mk.injEq, Nat.ne_of_gt, Nat.lt_succ_iff])
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#check Fin.mk.injEq
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