Solution to Determine the truth-values of the followings “ 1+1=4 if and only if earth is round” … - Sikademy
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Determine the truth-values of the followings “ 1+1=4 if and only if earth is round” “ Milk is white if and only if birds lay eggs” “ Sky is white if and only if 1=0” “ 33 is divisible by 5 if and only if hours has four legs” “ x > 5 if and only if x2 > 25”

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The truth table for biconditional statement is-

i) " 1+1=4 if and only if earth is round"


let first statement p =1+1=4 and q= earth is round

Truth table for biconditional statement

p is false(F) statement and also q is false(F) statement

so truth value of i ) statement is true (T)


ii ) " Milk is white if and only if birds lay eggs"


p = Milk is white, which is true (T) statement

q = birds lay eggs, which is true (T) statement

truth value of ii) statement is true (T)


iii) " Sky is white if and only if 1=0"


p=Sky is white , which is false (F) statement

q=1=0, which is false (F) statement

So truth value of iii) statement is true (T)


iv) " 33 is divisible by 5 if and only if horse has four legs "


p = 33 is divisible by 5, which is false (F) statement

q= horse has four legs , which is true (T) statement

So truth value of iv) statement is false (F)


v) "x>5 if and only if x²>25"

This is not a statement so we can not determined their truth value


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Question ID: mtid-5-stid-8-sqid-2986-qpid-1685