Select the Best Translation into Predicate Logic, Using the Following

question 149

Multiple Choice

select the best translation into predicate logic, using the following translation key:
a: Ahmed
b: Bhavin
c: Chloe
d: Delfina
e: Eduardo
i: Irving
f(x) : the father of x
g(x) : the mother of x
f(x,y) : the only son of x and y
Lxy: x loves y
Sxy: x is a sister of y
Txy: x teaches y
-No one is the only son of Ahmed and Delfina.

• A) (∀x)(x≠a • x≠d)
• B) (∀x)f(x,x)≠f(a,d)
• C) ∼(∃x)x=f(a,d)
• D) ∼(∃x)f(x)
• E) ∼(∃x)f(x)=f(a,d)

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