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
Soccer in the United States effectively the amateur fifth division of soccer in the United States. The Lamar Hunt U.S. Open Cup is a knockout tournament in American soccer. The tournament is the oldest ongoing national soccer competition in the U.S. and was historically open to all United States Soccer Federation affiliated teams, from amateur adult club teams to the professional clubs of Major League Soccer. Since the 2016 edition, professional teams that are majority-owned, or whose playing staff is managed, by a higher-division outdoor professional team have been barred from the competition; all other U.S. Soccer-affiliated teams remain eligible to enter. The Open Cup