How to OR and AND operator in CLIPS?

[Amol salunke]

I need to OR and AND operator while expression evaluation, but when I use it o CLIPSDOS it give wrong result.

CLIPS (6.31 6/12/19) 

CLIPS> ( and 0 1 )

 TRUE

 CLIPS>

“I expect the output FALSE but it give TRUE, What could be wrong in it?'

[CLIPS Support]

In C, the integer 0 is false and any other integer is true.

In CLIPS, the symbol FALSE is false and any other value is true.

         CLIPS (6.31 6/12/19)

CLIPS> (and 0 1)

TRUE

CLIPS> (and 1 2)

TRUE

CLIPS> (and FALSE TRUE)

FALSE

CLIPS>