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tautology, contradiction, contingency, duality, negation of compound statement, contrapositive, converse, inverse
Using truth table examine whether the following statement pattern is tautology, contradiction or contingency ``
Examine whether the following logical statement pattern is tautology, contradiction or contingency.
[(p → q) ∧ q] → p
Write the dual of the following statements:
(l) (p ∨ q) ∧ T
(2) Madhuri has curly hair and brown eyes .
Write the converse and contrapositive of the statement — “If two triangles are congruent, then their areas are equal.”