help me,about or and && problom

[zdj229]

if((false&&true)||(true&&false))
{
}

I write EA procedures after the emergence of a problem, I made an accurate tracking, determine the top value, then the program is put in brackets damn code execution, resulting in a substantial loss of my EA, I met this kind of thing I do, please help explain why God
This is my source code

[Carl Schreiber]

bool always_false = true && false,
     always_true  = true || false;

Maybe you should check how this is calculated - here?