Answer to Question #249814 in Discrete Mathematics for tin

Question

state the value of x after the statement if P(x) then x = 1 is executed , when P(x) is the statement =x>1 , " if the value of x when this statement is reached is

Answer 1

Consider the statement "if P(x) then x:=1" which is equivalent to "if x>1 then x:=1"

a) If x=0, then the statement P(0)="0>1" is false, and thus the value of x is equal to 0 after the statement "if P(x) then x:=1".

b) If x=1, then the statement P(1)="1>1" is false, and thus the value of x is equal to 1 after the statement "P(x) then x := 1".

c) If x=2, then the statement P(2)="2>1" is true, and thus the value of x is equal to 1 after the statement "if P(x) then x := 1".