माना r in {p, q, ~p, ~q} के लिए तर्क संग...

माना `r in {p, q, ~p, ~q}` के लिए तर्क संगत कथन `r vee (~p) rArr (p wedge q) vee r` एक पुनरुक्ति है। तो r बराबर है -

A

p

B

q

C

`~p`

D

`~q`

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