(a) Show that the formula (VæR(g(x), x) → Vx3yR(y, x)) is universally valid, is a l-place function symbol and R is a 2-place relation symbol. where (b) Prove that F x= y = (f(x,y, x) ~ f(y, x, y))...

(a) Show that the formula (VæR(g(x), x) → Vx3yR(y, x)) is universally valid,<br>is a l-place function symbol and R is a 2-place relation symbol.<br>where<br>(b) Prove that F x= y = (f(x,y, x) ~ f(y, x, y)) where f is a 3-place function<br>symbol.<br>

Extracted text: (a) Show that the formula (VæR(g(x), x) → Vx3yR(y, x)) is universally valid, is a l-place function symbol and R is a 2-place relation symbol. where (b) Prove that F x= y = (f(x,y, x) ~ f(y, x, y)) where f is a 3-place function symbol.

Jun 05, 2022

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(a) Show that the formula (VæR(g(x), x) → Vx3yR(y, x)) is universally valid, is a l-place function symbol and R is a 2-place relation symbol. where (b) Prove that F x= y = (f(x,y, x) ~ f(y, x, y))...

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