CS计算机代考程序代写 PHIL1012 – Introduction to Logic

PHIL1012 – Introduction to Logic
Problem Set 3 – Second Semester, 2021

Submit your answers to Problem Set 3 via Canvas before 23:59, Wednesday of Week 6.

1. Use a tree to test whether the following argument is valid or invalid. If it is invalid, read off
a counterexample.

1. A → B
2. B →C
∴ A∨C

2. Use a tree to test whether the following argument is valid or invalid. If it is invalid, read off
a counterexample.

1. A ↔ B
2. ¬A
∴ ¬B

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