Each of them is a simple is-set after opening the respective <Something>Str. In the case of Algebra and OrderedCommMonoid, the is-set field was impossible to use since it was exported twice from the respective records; I fixed that by hiding one copy (as it was already done in Ring, for example).
This PR simplifies, or at least harmonizes, the definitions of the following lemmas:
Each of them is a simple
is-set
after opening the respective<Something>Str
. In the case ofAlgebra
andOrderedCommMonoid
, theis-set
field was impossible to use since it was exported twice from the respective records; I fixed that by hiding one copy (as it was already done inRing
, for example).