simplifyAnd

fun KContext.simplifyAnd(lhs: KExpr<KBoolSort>, rhs: KExpr<KBoolSort>, flat: Boolean = true, order: Boolean = true): KExpr<KBoolSort>
fun KContext.simplifyAnd(args: List<KExpr<KBoolSort>>, flat: Boolean = true, order: Boolean = true): KExpr<KBoolSort>