cf22c367a1
This PR adds support for `grind +premises`, calling the currently configured premise selection algorithm and including the results as parameters to `grind`. (Recall that there is not currently a default premise selector provided by Lean4: you need a downstream premise selector to make use of this.)
39 lines
936 B
Text
39 lines
936 B
Text
import Lean.PremiseSelection
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/--
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error: Type mismatch
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Nat
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has type
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Type
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of sort `Type 1` but is expected to have type
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Lean.PremiseSelection.Selector
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of sort `Type`
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---
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error: Failed to elaborate Nat as a `MVarId → Config → MetaM (Array Suggestion)`.
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-/
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#guard_msgs in
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set_premise_selector Nat
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/--
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error: No premise selector registered. (Note that Lean does not provide a default premise selector, these must be provided by a downstream library, and configured using `set_premise_selector`.)
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-/
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#guard_msgs in
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example : True := by
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suggest_premises
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trivial
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set_premise_selector (fun _ _ => pure #[])
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/-- info: Premise suggestions: [] -/
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#guard_msgs in
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example : True := by
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suggest_premises
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trivial
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set_premise_selector Lean.PremiseSelection.random ⟨1,1⟩
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-- This would be an extremely fragile test (select 10 random constants!)
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-- so we do not use #guard_msgs.
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example : True := by
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suggest_premises
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trivial
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