feat(library/data/list/basic): list A has decidable equality if A has
feat(library/data/list/basic): list A has decidable equality if A has

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