feat(src/emacs/lean-input.el): add abbreviations 'mem', 'subeq', etc.
feat(src/emacs/lean-input.el): add abbreviations 'mem', 'subeq', etc.

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