07c407ab82
We now also track which declarations have been unfolded by the kernel when using ```lean set_option diagnostics true ```
34 lines
827 B
Text
34 lines
827 B
Text
def ack : Nat → Nat → Nat
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| 0, y => y+1
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| x+1, 0 => ack x 1
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| x+1, y+1 => ack x (ack (x+1) y)
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termination_by a b => (a, b)
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/--
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info: [reduction] unfolded declarations (max: 1725, num: 4):
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Nat.rec ↦ 1725
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⏎
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Eq.rec ↦ 1114
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⏎
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Acc.rec ↦ 1050
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⏎
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PSigma.rec ↦ 513[reduction] unfolded reducible declarations (max: 1577, num: 3):
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Nat.casesOn ↦ 1577
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⏎
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Eq.ndrec ↦ 984
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⏎
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PSigma.casesOn ↦ 513[kernel] unfolded declarations (max: 1193, num: 5):
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Nat.casesOn ↦ 1193
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⏎
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Nat.rec ↦ 1065
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⏎
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Eq.ndrec ↦ 973
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⏎
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Eq.rec ↦ 973
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Acc.rec ↦ 754use `set_option diagnostics.threshold <num>` to control threshold for reporting counters
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-/
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#guard_msgs in
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set_option diagnostics.threshold 500 in
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set_option diagnostics true in
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theorem ex : ack 3 2 = 29 :=
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rfl
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