EntityQ2114682· pop 17· linked from 76 articlesIverson bracketSign in to savemathematical notation: [P] has the value 1 if P is true, and 0 if P is falseConnectionsmathematicsEntityprogramming languageEntityfunctionEntityWayback MachineEntityDonald KnuthEntityabsolute valueEntityQ118398EntitypointerEntitypropositionEntitycoprimeEntitysumEntityKronecker deltaEntityAPLEntitysign functionEntityEuler's totient functionEntityHeaviside step functionEntityBoolean data typeEntityindicator functionEntityMöbius functionEntityKenneth E. IversonEntityCategoriesMathematical notation