feat(library/tactic/smt/smt_state): use simplifier in the preprocessing step
feat(library/tactic/smt/smt_state): use simplifier in the preprocessing step

dselsam/lean,fgdorais/lean,leanprover/lean,leanprover-community/lean,digama0/lean,digama0/lean,leanprover/lean,rlewis1988/lean,leanprover-community/lean,dselsam/lean,fgdorais/lean,rlewis1988/lean,leodemoura/lean,dselsam/lean,avigad/lean,leanprover-community/lean,leodemoura/lean,fgdorais/lean,fpvandoorn/lean,leodemoura/lean,dselsam/lean,digama0/lean,fpvandoorn/lean,Kha/lean,johoelzl/lean,leodemoura/lean,Kha/lean,rlewis1988/lean,fgdorais/lean,avigad/lean,johoelzl/lean,avigad/lean,rlewis1988/lean,Kha/lean,rlewis1988/lean,leodemoura/lean,johoelzl/lean,johoelzl/lean,Kha/lean,fpvandoorn/lean,leanprover/lean,dselsam/lean,Kha/lean,Kha/lean,fpvandoorn/lean,avigad/lean,avigad/lean,dselsam/lean,leanprover-community/lean,fgdorais/lean,fpvandoorn/lean,avigad/lean,leanprover/lean,johoelzl/lean,fpvandoorn/lean,leanprover-community/lean,digama0/lean,rlewis1988/lean,johoelzl/lean,digama0/lean,fgdorais/lean,leanprover-community/lean,leodemoura/lean,leanprover/lean,leanprover/lean,digama0/lean