Construct a Complete Truth Table for Each of the Following $\lor$

question 145

Essay

construct a complete truth table for each of the following propositions. Then, using the truth table, classify each proposition as a tautology, a contingency, or a contradiction.
Justify your answers by appeal to the meanings of those terms.
-(G ? H) ? ? [(G • H) $\lor$ (?G • ?H)]

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Definitions:

Credit Memorandum

A document issued by a seller to a buyer, reducing the amount owed by the buyer due to returns or allowances.