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lean4/tests/elab/4751.lean
Garmelon 08eb78a5b2 chore: switch to new test/bench suite (#12590)
This PR sets up the new integrated test/bench suite. It then migrates
all benchmarks and some related tests to the new suite. There's also
some documentation and some linting.

For now, a lot of the old tests are left alone so this PR doesn't become
even larger than it already is. Eventually, all tests should be migrated
to the new suite though so there isn't a confusing mix of two systems.
2026-02-25 13:51:53 +00:00

51 lines
1.2 KiB
Lean4

inductive F: Prop where
| base
| step (fn: Nat F)
-- set_option trace.Meta.IndPredBelow.search true
-- set_option trace.Elab.definition.structural true
set_option pp.proofs true
def F.asdf1 : (f : F) True
| base => trivial
| step g => match g 1 with
| base => trivial
| step h => F.asdf1 (h 1)
termination_by structural f => f
def TTrue (_f : F) := True
def F.asdf2 : (f : F) TTrue f
| base => trivial
| step f => F.asdf2 (f 0)
termination_by structural f => f
inductive ITrue (f : F) : Prop where | trivial
def F.asdf3 : (f : F) ITrue f
| base => .trivial
| step f => F.asdf3 (f 0)
termination_by structural f => f
-- Variants with extra arguments
inductive T : Prop Prop where
| base : T True
| step (fn: Nat T (True p)) : T p
def T.foo {P : Prop} : (f : T P) P
| base => True.intro
| step f => foo (f 0) True.intro
termination_by structural f => f
-- The same, but as a non-reflexive data type
inductive T' : Prop Prop where
| base : T' True
| step (t : T' (True p)) : T' p
def T'.foo {P : Prop} : (f : T' P) P
| base => True.intro
| step t => foo t True.intro
termination_by structural f => f