The Philosophy of Mathematics, Etc

abscissa abstract number absurd algebra Analytical Geometry angle approach Archimedes axiom axis become Cavalieri circle circumference circumscribed clear co-ordinates coincide curve curvilinear figure curvilinear space D'Alembert definition demonstration Descartes determinate difference differential calculus Duhamel equation error evident exactly equal expression false finite frustum Gordian knot Hence hypothesis increment indefinitely indeterminate infinite number infinitely small quantities infinitesimal analysis infinitesimal method infinity inscribed lemma logical magnitudes mathematicians mathematics method of exhaustion method of indivisibles method of Leibnitz method of limits mind Newton number of sides objection obscure ordinate parabola parallel parallelograms Pascal perfectly Philosophy of Mathematics polygon precisely principle pyramid question reason rectangles rectilinear reductio ad absurdum regular polygon represent result right lines says Carnot Scholium subtangent supposed supposition surface symbol tangent line term thing tion triangle true truth ultimate ratios ultimately equal variable volume zero