or invalid using a truth table. Clearly indicate the rows or columns you considered in
order to reach the conclusion.
x V ~y
~x-y
---------
: x <-> y
or invalid using a truth table. Clearly indicate the rows or columns you considered in order to reach the conclusion. x
-
answerhappygod
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or invalid using a truth table. Clearly indicate the rows or columns you considered in order to reach the conclusion. x
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