16 lines
304 B
Text
16 lines
304 B
Text
import Lean
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@[inline] def pred? (x : Nat) : Option Nat :=
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match x with
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| 0 => none
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| x+1 => some x
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def isZero (x : Nat) :=
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match pred? x with
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| some _ => false
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| none => true
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#eval Lean.Compiler.compile #[``isZero]
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set_option trace.Compiler.simp true
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#eval Lean.Compiler.compile #[``isZero]
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