chore(library/definitional/equations): cleanup
chore(library/definitional/equations): cleanup

fpvandoorn/lean,rlewis1988/lean,dselsam/lean,javra/lean,UlrikBuchholtz/lean,c-cube/lean,sp3ctum/lean,levnach/lean,htzh/lean,fpvandoorn/lean,leodemoura/lean,leanprover/lean,johoelzl/lean,htzh/lean,leodemoura/lean,digama0/lean,fpvandoorn/lean,UlrikBuchholtz/lean,UlrikBuchholtz/lean,digama0/lean,leanprover/lean,eigengrau/lean,levnach/lean,soonhokong/lean-windows,rlewis1988/lean,soonhokong/lean,soonhokong/lean-osx,sp3ctum/lean,leanprover/lean,leanprover-community/lean,avigad/lean,soonhokong/lean,eigengrau/lean,soonhokong/lean-windows,digama0/lean,fpvandoorn/lean,sp3ctum/lean,sp3ctum/lean,htzh/lean,leanprover-community/lean,digama0/lean,johoelzl/lean,javra/lean,javra/lean,htzh/lean,dselsam/lean,eigengrau/lean,rlewis1988/lean,Kha/lean,leodemoura/lean,leanprover-community/lean,Kha/lean,soonhokong/lean,johoelzl/lean,leanprover-community/lean,leanprover/lean,leodemoura/lean,fpvandoorn/lean,Kha/lean,dselsam/lean,leodemoura/lean,avigad/lean,fgdorais/lean,johoelzl/lean,fgdorais/lean,htzh/lean,fgdorais/lean,javra/lean,sp3ctum/lean,soonhokong/lean,fpvandoorn/lean2,digama0/lean,soonhokong/lean-osx,leanprover-community/lean,fpvandoorn/lean2,fpvandoorn/lean2,avigad/lean,levnach/lean,levnach/lean,soonhokong/lean-windows,dselsam/lean,Kha/lean,c-cube/lean,fgdorais/lean,rlewis1988/lean,c-cube/lean,soonhokong/lean-windows,fpvandoorn/lean2,fpvandoorn/lean,soonhokong/lean-windows,leanprover/lean,avigad/lean,c-cube/lean,Kha/lean,UlrikBuchholtz/lean,soonhokong/lean,fpvandoorn/lean2,rlewis1988/lean,johoelzl/lean,javra/lean,c-cube/lean,Kha/lean,soonhokong/lean-osx,eigengrau/lean,soonhokong/lean-osx,eigengrau/lean,leanprover-community/lean,fgdorais/lean,leodemoura/lean,digama0/lean,dselsam/lean,leanprover/lean,johoelzl/lean,UlrikBuchholtz/lean,avigad/lean,soonhokong/lean-osx,levnach/lean,avigad/lean,dselsam/lean,fgdorais/lean,rlewis1988/lean