test(tests/lean/run): pre-quotient experiment
feat(library/algebra/group): add ordered semigroups
feat(library/hott) postcomposition from ua lemma is done up to the last gap
chore(library/hott) fix universe issue. note: this should be fixed when contr is not bound to universe level 1 anymore
fix(library/hott) adapt trunc.lean to missing equiv coercion