lean4-htt/tests/lean/run/nestedInductiveUniverse.lean at c595413fccaa47ebdc399d9b817c17425687fc26 - max/lean4-htt - maxgit: wireguard access, git repository.

max/lean4-htt

Parth Shastri 8223a96bf5

fix: correct universe used in below/brecOn for non-reflexive inductive types (#8937 )

This PR changes the output universe of the generated `below`
implementation for non-reflexive inductive types to match the
implementation for reflexive inductive types in #7639.

This fixes the `below`/`brecOn` implementations for certain nested
inductive types, as reported in
https://leanprover.zulipchat.com/#narrow/channel/270676-lean4/topic/Universes/near/525030149.

2025-06-23 09:42:31 +00:00

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 /-!
 Tests a bug in the generated below/brecOn implementations for nested inductive types
 Reported at https://leanprover.zulipchat.com/#narrow/channel/270676-lean4/topic/Universes/near/525030149
 -/
 inductive TCTree : Type (u + 1)
   | node : (Σ (I : Type u), I → TCTree) → TCTree