Given below are two statements. In the light of the above statements, choose the correct answer from the options given below.
Statement I:To obvert a proposition, we change its quality and replace the predicate with its complement.
Statement II:Obversion is valid for any standard-form categorical proposition.
ABoth Statement I and Statement II are true ✓ Correct
BBoth Statement I and Statement II are false
CStatement I is true but Statement II is false
DStatement I is false but Statement II is true
Correct answer: (A) Both Statement I and Statement II are true
Explanation
Statement 1 is correct: obversion changes the quality and substitutes the predicate's complement.
An A becomes an E, an E an A, an I an O, and an O an I under this rule.
Statement 2 is correct too: obversion is valid for all four standard categorical forms.
In every case the obverse keeps exactly the truth value of the original.
So both statements about obversion hold.
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