Foundations of geometry different sets of axioms for Euclidean geometry, any of these can replace the Euclidean parallel postulate. The following partial list indicates some of these theorems that are of historical interest. Absolute geometry is a geometry based on an axiom system consisting of all the axioms giving Euclidean geometry except for the parallel postulate or any of its alternatives. The term was introduced by János Bolyai in 1832. It is sometimes referred to as neutral geometry, as it is neutral with respect to the parallel postulate. In Euclid's "Elements", the first 28 propositions and Proposition I.31 avoid using the parallel postulate,
Ptolemy of Mauretania recover money from Ptolemy. Ptolemy is a minor character in the novels by Robert Graves, "I Claudius " and "Claudius the God". He appears in Stephanie Dray's novel "Daughters of the Nile", which marked the end of the trilogy focusing on Ptolemy's mother. Throughout Morocco and Algeria, statues have survived that belonged to Ptolemy. There is a nude statue of him, dated from the 1st century, which is on display at the Rabat Museum in Morocco. His sculpted images are of a youthful appearance and particularly those first portraits created during the reign of JubaII virtually show his relations to