lean4-htt

Author SHA1 Message Date

Author	SHA1	Message	Date
Joachim Breitner	e96467f500	refactor: introduce SameCtorUtils (#10316 ) This PR shares common functionality relate to equalities between same constructors, and when these are type-correct. In particular it uses the more complete logic from `mkInjectivityThm` also in other places, such as `CasesOnSameCtor` and the deriving code for `BEq`, `DecidableEq`, `Ord`, for more consistency and better error messages.	2025-09-10 14:32:58 +00:00
Joachim Breitner	a872cec0a7	refactor: use `match decEq`, not `if h :` in `deriving DecidableEq` (#10274 ) This PR changes the implementation of the linear `DecidableEq` implementation to use `match decEq` rather than `if h : ` to compare the constructor tags. Otherwise, the “smart unfolding” machinery will not let `rfl` decide that different constructors are different.	2025-09-06 21:00:34 +00:00

Joachim Breitner

e96467f500

refactor: introduce SameCtorUtils (#10316 )

This PR shares common functionality relate to equalities between same
constructors, and when these are type-correct. In particular it uses the
more complete logic from `mkInjectivityThm` also in other places, such
as `CasesOnSameCtor` and the deriving code for `BEq`, `DecidableEq`,
`Ord`, for more consistency and better error messages.

2025-09-10 14:32:58 +00:00

Joachim Breitner

a872cec0a7

refactor: use match decEq, not if h : in deriving DecidableEq (#10274 )

This PR changes the implementation of the linear `DecidableEq`
implementation to use `match decEq` rather than `if h : ` to compare the
constructor tags. Otherwise, the “smart unfolding” machinery will not
let `rfl` decide that different constructors are different.

2025-09-06 21:00:34 +00:00

2 commits