Saccheri–Legendre theorem Saccheri–Legendre theorem In absolute geometry, the Saccheri–Legendre theorem states that the sum of the angles in a triangle is at most 180°. Absolute geometry is the geometry obtained from assuming all the axioms that lead to Euclidean geometry with the exception of the axiom that is equivalent to the parallel postulate of Euclid. The theorem is named after Giovanni Girolamo Saccheri and Adrien-Marie Legendre. The existence of at least one triangle with angle sum of 180 degrees in absolute geometry implies Euclid's parallel postulate. Similarly, the existence of at least one triangle with angle sum of less than 180 degrees
Less Than Jake been recording his own solo music while not working with Less Than Jake. He is a guest vocalist on the 2010 album The Seven Degrees Of Stephen Egerton by Descendents guitarist Stephen Egerton. He performed on the Ska Goes Solo Tour with JT Turret of The Arrogant Sons of Bitches and Ryan Eldred of Catch 22 in 2014. He released the song "Up" on the Ska Goes Solo split 7" prior to the tour. Less Than Jake Less Than Jake is an American ska punk band from Gainesville, Florida, formed in 1992. The band consists of Chris DeMakes (vocals, guitar),