Use the short truth-table method to determine whether the following is valid or invalid:
A $\rarr$ B
~D $\rarr$ ~C
~D
~C $\rarr$ ~B/$\therefore$ ~A

Name: Use the short truth-table method to determine whether the following is valid or invalid: A $\rarr$ B ~D $\rarr$ ~C ~D ~C $\rarr$ ~B/$\therefore$ ~A
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Question

Use the short truth-table method to determine whether the following is valid or invalid:
A $\rarr$  B
~D $\rarr$  ~C
~D
~C $\rarr$  ~B/$\therefore$ ~A

Quizplus · Accepted Answer

The Answer of Use the short truth-table method to determine whether the following is valid or invalid:
A $\rarr$  B
~D $\rarr$  ~C
~D
~C $\rarr$  ~B/$\therefore$ ~A

Use the Short Truth-Table Method to Determine Whether the Following →\rarr→

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