Neither 21 is a prime number nor it is divisible by 3 find truth value of this statement
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From the statement given,
2121 is divisible by 33
\because∵ 21=3\times721=3×7
\Rightarrow ⇒ 2121 is also not prime
So, \neg \left( 21\epsilon P \right) \Lambda \neg \left( 3/21 \right) ¬(21ϵP)Λ¬(3/21)
=\neg false\Lambda \neg T=¬falseΛ¬T
=T\Lambda F=TΛF
=F=F
\therefore∴ the truth value of the statement is false.
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Answer:
21 is not a prime but it is divisible with 3
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