False (logic) the sense above. In Boolean logic each variable denotes a Truth value which can be either true (1), or false (0). In a classical propositional calculus each proposition will be assigned a truth value of either true or false. Some systems of classical logic include dedicated symbols for false (0 or ⊥), others instead rely upon formulas such as and . In both Boolean logic and Classical logic systems, true and false are opposite with respect to negation; The negation of false gives true, and the negation of true gives false. The negation of false is equivalent to the truth
Midfielder According to positioning along the field, attacking midfield may be divided into "left, right" and "central attacking midfield" roles but mostly important he is a striker behind the forwards. A central attacking midfielder may be referred to as a "playmaker", or "number ten" (due to the association of the number 10 shirt with this position). A good attacking midfielder needs good passing abilities, vision, the ability to make long shots, and solid dribbling skills. These players typically serve as the offensive pivot of the team, and are sometimes said to be "playing in the hole," although this term can also