[MSDN Library June 1998] Logical-NOT Operator: ! (100%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Using Visual C++ > Visual C++ Programmer's Guide > Language Quick Reference > C/C++ Operators > Unary Operators

[MSDN Library September 1992] Logical Operators (53.9473684210526%)

Product Documentation > C/C++ 7.0 > C Language Reference > Chapter 4 Expressions and Assignments > 4.2 Operators

[MSDN Library September 1992] Logical Operators (48.5416666666667%)

Product Documentation > QuickC for Windows > C for Windows > PART 1 Learning C > Chapter 6 Operators > C's Unique Operators

[MSDN Library June 1998] Logical-OR Operator: || (43.0316091954023%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Using Visual C++ > Visual C++ Programmer's Guide > Language Quick Reference > C/C++ Operators

[MSDN Library June 1998] Logical-AND Operator: (43.0316091954023%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Using Visual C++ > Visual C++ Programmer's Guide > Language Quick Reference > C/C++ Operators

[MSDN Library June 1998] Logical NOT Operator (!) (41.9270833333333%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Reference > C/C++ Language and C++ Libraries > C++ Language Reference > Expressions > Types of Expressions > Expressions with Unary Operators

[MSDN Library June 1998] Logical OR Operator (37.6893939393939%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Reference > C/C++ Language and C++ Libraries > C++ Language Reference > Expressions > Types of Expressions > Expressions with Binary Operators