Use the Express Boolean functions to perform logical operations on Boolean values.

And Function
Computes the logical AND of the inputs. Both inputs must be Boolean values, numeric values, or error clusters. If both inputs are TRUE, the function returns TRUE. Otherwise, it returns FALSE.
Or Function
Computes the logical OR of the inputs. Both inputs must be Boolean values, numeric values, or error clusters. If both inputs are FALSE, the function returns FALSE. Otherwise, it returns TRUE.
Exclusive Or Function
Computes the logical exclusive or (XOR) of the inputs. Both inputs must be Boolean values, numeric values, or error clusters. If both inputs are TRUE or both inputs are FALSE, the function returns FALSE. Otherwise, it returns TRUE.
Not Function
Computes the logical negation of the input. If x is FALSE, the function returns TRUE. If x is TRUE, the function returns FALSE.
Not And Function
Computes the logical NAND of the inputs. Both inputs must be Boolean values, numeric values, or error clusters. If both inputs are TRUE, the function returns FALSE. Otherwise, it returns TRUE.
Not Or Function
Computes the logical NOR of the inputs. Both inputs must be Boolean values, numeric values, or error clusters. If both inputs are FALSE, the function returns TRUE. Otherwise, it returns FALSE.
Not Exclusive Or Function
Computes the logical negation of the logical exclusive or (XOR) of the inputs. Both inputs must be Boolean values, numeric values, or error clusters. If both inputs are TRUE or both inputs are FALSE, the function returns TRUE. Otherwise, it returns FALSE.
Implies Function
Negates x and then computes the logical OR of y and the negated x. Both inputs must be Boolean values, numeric values, or error clusters. If x is TRUE and y is FALSE, the function returns FALSE. Otherwise, it returns TRUE.
True Constant VI
Use this constant to provide a value of TRUE to the block diagram.
False Constant
Use this constant to provide a value of FALSE to the block diagram.

Parent topic: Arithmetic & Comparison

LabVIEW Programming Reference Manual

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