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The statement pq∼(p↔∼q) is ______.

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Question

The statement `∼ ("p"leftrightarrow∼"q")` is ______.

Options

  • a tautology

  • a fallacy

  • equivalent to `"p"leftrightarrow"q"`

  • equivalent to `∼"p"leftrightarrow"q"`

MCQ
Fill in the Blanks
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Solution

The statement `∼ ("p"leftrightarrow∼"q")` is `underlinebb("equivalent to"  "p"leftrightarrow"q)`.

Explanation:

p q ∼q `bb("p"leftrightarrow∼"q")` `bb(∼("p"leftrightarrow∼"q")` `bb("p"leftrightarrow"q")`
F F T F T T
F T F T F F
T F T T F F
T T F F T T

From the table columns (i) and (ii) are equivalent.

∴ Equivalent to `"p"leftrightarrow"q"`.

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Logical Equivalance
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