lean4-htt

Author SHA1 Message Date

Author	SHA1	Message	Date
jrr6	34bd6e8bfd	feat: improve `split` error messages (#9424 ) This PR improves the error messages produced by the `split` tactic, including suggesting syntax fixes and related tactics with which it might be confused. Note that, to avoid clashing with the new error message styling conventions used in these messages, this PR also updates the formatting of the message produced by `throwTacticEx`. Closes #6224	2025-07-18 22:36:10 +00:00
Kyle Miller	3af9ab64ed	feat: `subst` tactic can substitute `let` values (#8450 ) This PR adds a feature to the `subst` tactic so that when `x : X := v` is a local definition, `subst x` substitutes `v` for `x` in the goal and removes `x`. Previously the tactic would throw an error.	2025-05-27 06:06:35 +00:00

jrr6

34bd6e8bfd

feat: improve split error messages (#9424 )

This PR improves the error messages produced by the `split` tactic,
including suggesting syntax fixes and related tactics with which it
might be confused.

Note that, to avoid clashing with the new error message styling
conventions used in these messages, this PR also updates the formatting
of the message produced by `throwTacticEx`.

Closes #6224

2025-07-18 22:36:10 +00:00

Kyle Miller

3af9ab64ed

feat: subst tactic can substitute let values (#8450 )

This PR adds a feature to the `subst` tactic so that when `x : X := v`
is a local definition, `subst x` substitutes `v` for `x` in the goal and
removes `x`. Previously the tactic would throw an error.

2025-05-27 06:06:35 +00:00

2 commits