1+1
1+1 is a mathematical expression that evaluates to: 2 (number) (in ordinary arithmetic) 1 (number) (in Boolean algebra with a notation where '+' denotes a logical disjunction) 0 (number) (in Boolean algebra with a notation where '+' denotes 'exclusive or' operation, or in a quotient ring of numbers modulo 2) The terms 1+1, One Plus One, or One and One may refer to: == 1+1 == 1 + 1 + 1 + 1 + ⋯, a mathematical divergent series 1+1 (TV channel), a Ukrainian TV channel 1+1 (Grin album), 1972 1+1 (Herbie Hancock and Wayne Shorter album), 1997 "1+1" (Beyoncé song), 2011 "1+1" (Sia song), 2021 "1+1", a 2021 song by the South Korean group Pentagon from Love or Take == One Plus One == OnePlus One, an Android smartphone One Plus One, original title of Jean-Luc Godard's 1968 film Sympathy for the Devil One Plus One, 2002 graphic novel published by Oni Press One Plus One (TV programme), a weekly interview show aired by ABC in Australia Unomásuno (English: One Plus One), a Mexican newspaper == One and One == One and One (musical), an American 1970s off-Broadway musical comedy (also known as One & One) One and One (song), written by Billy Steinberg, Rick Nowels and Marie-Claire D'Ubaldo and notably covered by Robert Miles feat.