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1. (∀X)(∀y)f(x,y)=f(y,x) 2. (∀X)f(x,o)=o

Question 59

Multiple Choice

1. (∀x) (∀y) f(x,y) =f(y,x)
2. (∀x) f(x,o) =o
-Which of the following propositions is an immediate (one-step) consequence in FF of the given premises?


A) f(o,o) =o
B) f(o) =o
C) f(o,x) =o
D) f(o,x) =x
E) f(x,o) =x

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