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Consider : Statement I: (p^^~q)^^(~p...

Consider :
Statement I:
`(p^^~q)^^(~p^^q)` is a fallacy
Statement II: `(ptoq)harr(~q to ~p) ` is a tautology

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Statements (p to q) harr (q to p)

The logical statement (p to q) vv (q to ~ p) is :

Observe the following statements Statement - I : p vv ~(p ^^ q) is a tautology Statement - II : A statement pattern is called a tautology, if it is always true, whatever may be the true value of constitute statements.

Show that [(ptoq)^^(qto r)] to ( p to r) is a tautology

Statements -1 : ~(pharr~q) is equivalent to p harr q Statement-2: ~( p harr ~q) is a tautology.

Verify that the statement P vee ~( p ^^ q) is a tautology.

Show that (p^^q)vv(~p)vv(p^^~q) is a tautology

Observe the following statements : Statements - I : (p vv q) ^^ (~p ^^ ~q) is a contradiction. Statement - II : A statement pattern is called a contradiction, it it is a always false, whatever may the truth values of its consitutes statements.

The statement ~(p ^^ q) vv q

The statement p vv q is

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