efe2ab4c04
This PR cleans up many duplicate instances (or, in some cases, needlessly duplicated `def X := ...; instance Y := X`).
61 lines
1.2 KiB
Text
61 lines
1.2 KiB
Text
/--
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error: tactic 'fail' failed
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z : Nat
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⊢ z - 1 < z
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-/
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#guard_msgs in
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def g (z : Nat) (y : Nat) : Nat := g (z - 1) y
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termination_by z
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decreasing_by fail
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/--
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error: tactic 'fail' failed
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x : List Nat
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⊢ sizeOf x.tail < sizeOf x
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-/
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#guard_msgs in
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def h (x : List Nat) (y : Nat) : Nat := h x.tail y
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termination_by x
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decreasing_by fail
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/--
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error: tactic 'fail' failed
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x : List Nat
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⊢ x.tail.length < x.length
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-/
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#guard_msgs in
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def f (x : List Nat) (y : Nat) : Nat := f x.tail y
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termination_by x.length
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decreasing_by fail
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/--
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error: tactic 'fail' failed
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x : List Nat
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⊢ x.tail.length < x.length
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-/
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#guard_msgs in
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mutual
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def f1 (x : List Nat) (y : Nat) : Nat := f2 x.tail y
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termination_by x.length
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decreasing_by fail
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def f2 (x : List Nat) (y : Nat) : Nat := f1 x.tail y
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termination_by x.length
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decreasing_by fail
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end
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/--
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error: tactic 'fail' failed
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x : List Nat
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⊢ (invImage (fun x => PSum.casesOn x (fun x => x.length) fun x => x.length) sizeOfWFRel).1 (PSum.inr x.tail)
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(PSum.inl x)
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-/
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#guard_msgs in
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set_option debug.rawDecreasingByGoal true in
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mutual
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def g1 (x : List Nat) (y : Nat) : Nat := g2 x.tail y
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termination_by x.length
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decreasing_by fail
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def g2 (x : List Nat) (y : Nat) : Nat := g1 x.tail y
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termination_by x.length
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decreasing_by fail
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end
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