## Question

###### Which of the following are true? The universe for each is given in parentheses: (a) (Vx)lr +xzx) (Real numbers) (b) (Vx)(x xzx) (Natural numbers) (c) (3x)(2x 3 = 6x 7) (Natural numbers) (d) (3x)(3* 42) (Real numbers) (e) (3x)(3' x) (Real numbers) (T) (3x)(3(2 0= 8(1 x)) (Real numbers) (g) (Vx)Gx2 6x 5 2 0) (Real numbers) (Vx)Gr2 4x 5 > 0) (Real numbers) (3x)Gx? g +41is prime) (Natural numbers) (Vx)62 41is prime) (Natural numbers) (Vx)kr' I7x= 6x + 100 = 0) (Real numbers)

Which of the following are true? The universe for each is given in parentheses: (a) (Vx)lr +xzx) (Real numbers) (b) (Vx)(x xzx) (Natural numbers) (c) (3x)(2x 3 = 6x 7) (Natural numbers) (d) (3x)(3* 42) (Real numbers) (e) (3x)(3' x) (Real numbers) (T) (3x)(3(2 0= 8(1 x)) (Real numbers) (g) (Vx)Gx2 6x 5 2 0) (Real numbers) (Vx)Gr2 4x 5 > 0) (Real numbers) (3x)Gx? g +41is prime) (Natural numbers) (Vx)62 41is prime) (Natural numbers) (Vx)kr' I7x= 6x + 100 = 0) (Real numbers)

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