Microsoft.Z3.Context.MkIff C# (CSharp) Méthode

        public BoolExpr MkIff(BoolExpr t1, BoolExpr t2)
        {
            Contract.Requires(t1 != null);
            Contract.Requires(t2 != null);
            Contract.Ensures(Contract.Result<BoolExpr>() != null);

            CheckContextMatch(t1);
            CheckContextMatch(t2);
            return new BoolExpr(this, Native.Z3_mk_iff(nCtx, t1.NativeObject, t2.NativeObject));
        }

        /// <summary>
        /// Simple bit-vector example.
        /// </summary>
        /// <remarks>
        /// This example disproves that x - 10 &lt;= 0 IFF x &lt;= 10 for (32-bit) machine integers
        /// </remarks>
        public static void BitvectorExample1()
        {
            var ctx = new Z3.Context();

            using var svc = Z3Api.Own(ctx);


            var        bv_type     = ctx.MkBitVecSort(32);
            var        x           = (BitVecExpr)ctx.MkConst("x", bv_type);
            var        zero        = (BitVecNum)ctx.MkNumeral("0", bv_type);
            BitVecNum  ten         = ctx.MkBV(10, 32);
            BitVecExpr x_minus_ten = ctx.MkBVSub(x, ten);
            /* bvsle is signed less than or equal to */
            BoolExpr c1  = ctx.MkBVSLE(x, ten);
            BoolExpr c2  = ctx.MkBVSLE(x_minus_ten, zero);
            BoolExpr thm = ctx.MkIff(c1, c2);

            print("disprove: x - 10 <= 0 IFF x <= 10 for (32-bit) machine integers");
            Disprove(ctx, thm);
        }