Petrus Martinez de Osma

[2] The views of Martinez encountered opposition, particularly from Juan López de Salamanca.

His ideas were declared heretical, a judgement backed by a papal bull of Pope Sixtus IV.

[4][5] After his views were condemned, the book De confessione, written by Martinez on the occasion of the plenary indulgence of 1475, was burned; and he submitted.

[2] In Martinez Thomism was combined with Renaissance humanism; he opposed the philosophical style of nominalism.

[8] Martinez, through also his follower Diego de Deza, reformed the Salamanca syllabus to include Aristotelian physics and metaphysics, and influenced teaching at Seville.