[Merged by Bors] - feat(algebra/{group/with_one,order/monoid}): equivs for with_zero
and with_one
#12275
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This provides:
add_equiv.with_zero_congr : α ≃+ β → with_zero α ≃+ with_zero β
mul_equiv.with_one_congr : α ≃* β → with_one α ≃* with_one β
with_zero.to_mul_bot : with_zero (multiplicative α) ≃* multiplicative (with_bot α)
Zulip thread