/* Copyright (c) 2013 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Leonardo de Moura */ #pragma once #include "context.h" #include "environment.h" #include "name_set.h" namespace lean { bool is_head_beta(expr const & t); expr head_beta_reduce(expr const & t); expr head_reduce(expr const & t, environment const & e, context const & c = context(), name_set const * defs = nullptr); }