(( p * V p^ prime )^ prime ^ q bileşik önermesi aşağıdakilerden hangi sine denktir?
A) 1
B) q
C) 0
D) p ^ prime
E) p ^ q
( forall x in R,x^ 2 +1=0) Rightarrow( exists x in R,x+4>0)
önermesinin karşıt-tersi aşağıdakilerden hangisidir?
A) ( 3 x in R,x+4>0) Rightarrow( forall x in R,x^ 2 +1=0)
B) ( exists x in R, x ^ 2 +1 ne0) Rightarrow( forall x in R,x+4<=0)
C) ( forall x in R,x+4<=0) Rightarrow( exists x in R, x ^ 2 +1 ne0)
D) ( forall x in R,x^ 2 +1=0) Rightarrow( exists x in R,x+4>0)
E) ( exists x in R,x+4<x) Rightarrow( exists x in R,x^ 2 +1=0)
(x^ 3 ne27) v(x = - 3vx = 3)
önermesinin değili hangisidir?
A) (x ^ 3 = 27) * v(x = - 3 ^ x = 3)
B) (x ^ 3 = 27) ^(x ne-3^ x ne3) C) (x ^ 2 = 27) ^(x ne-3^ x=3)
D) (x ^ 2 = 27) * v (x ne-3^ x ne3)
E) (x^ 2 ne27)^ (x = - 3 ^ x = 3)