Question: Use the counterexample method to prove that the following symbolized arguments are invalid. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 1. (x)(Ax

Use the counterexample method to prove that the following symbolized arguments are invalid.
1.

1. (x)(Ax Ɔ Bx) 2. (x)(Ax Ɔ~Cx) | (x)(Cx Ɔ Bx)

2.

1. (3x)(Ax • Bx) 2. (x)(Cx Ɔ Ax) | (3x)(Cx • Bx)

3.

1. (x)(Ax Bx) 2. (x)(Ax ~Cx) | (x)(Cx Bx) 1. (3x)(Ax Bx)

4.

2. (x)(Cx Ax) | (3x)(Cx Bx)

5.

6.

7.

8.

9.

10.

1. (x)(Ax Bx) 2. (x)(Ax ~Cx) | (x)(Cx Bx) 1. (3x)(Ax Bx) 2. (x)(Cx Ax) | (3x)(Cx Bx)

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