Further Maths > 2020 > 40
WASSCE
Consider the statement :
x : Birds fly
y : The sky is blue
Which of te following statements can be represented as x ↔ y ?
x : Birds fly
y : The sky is blue
Which of te following statements can be represented as x ↔ y ?
A.
When birds fly, the sky is blue
B.
Birds fly if and only if the sky is blue
C.
Either the bird is flying or the sky is blue
D.
when the sky is blue, the birds flies
Answer: B
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