BOOLEAN ALGEBRA
Foreword
Logic links
Negation (NOT)
Product (AND)
Inverted Product (NAND)
Sum (OR)
Invertd Sum (NOR)

Audio

Exclusive sum (XOR)
Logical Functions
Sequential and combinatorial functions
Tables

INVERTED SUM (NOR)

The logic inverted sum is the inversion of the previous link, and it is expressed by the link:

C is false (not) if and only if one or both variables A and B are true.

The corresponding function is: