64bd08e1f9
This PR adds a user facing `cbv` tactic that can be used outside of the `conv` mode. Example usage: ```lean4 example : "hello" ++ " " ++ "world" = "hello world" := by cbv ``` --------- Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
21 lines
343 B
Text
21 lines
343 B
Text
set_option cbv.warning false
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def f (n : Nat) : Nat := match n with
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| 0 => 0
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| (n + 1) => (f n) + 1
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termination_by n
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example : f 1 = f 1 := by cbv
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/--
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trace: ⊢ 1 = 2
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---
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warning: declaration uses `sorry`
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-/
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#guard_msgs in
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example : f 1 = f 2 := by
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cbv
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trace_state
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sorry
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example : "hello" ++ " " ++ "world" = "hello world" := by cbv
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