fix(02): typos and stylistic changes
fix(02): typos and stylistic changes

soonhokong/logic_and_proof,leanprover/logic_and_proof,fpvandoorn/logic_and_proof,soonhokong/logic_and_proof,rlewis1988/logic_and_proof,rlewis1988/logic_and_proof,leanprover/logic_and_proof,leanprover/logic_and_proof,avigad/logic_and_proof,avigad/logic_and_proof,fpvandoorn/logic_and_proof,rlewis1988/logic_and_proof,avigad/logic_and_proof,soonhokong/logic_and_proof,fpvandoorn/logic_and_proof