
4. Circle the free variables in the following formulas. (a) (Vx)(Fx & Gy) &Gx (b) (Vx)Fx & (Gr → ((3x)Fx & Gx)) (c) (Vx)(Fy v -Gx) (d) By)Fy-(Ex)Fx & (Bx)(Gy & Hx))+ Show transcribed image text
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