6: Projective Geometry Last updated Oct 30, 2021 Save as PDF 5.4: Parallels in Hyperbolic 6.1: Axioms for Projective Geometry Page ID89861 Mark A. FitchUniversity of Alaska Anchorage ( \newcommand{\kernel}{\mathrm{null}\,}\) 6.1: Axioms for Projective Geometry6.2: Perspectivities