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'' (1200–1265) was a Persian philosopher, astronomer and mathematician from Abhar. His works include

★ '': a book dealing with a complete cycle of Hikmat, i.e., logic, natural philosophy, and metaphysics.

★ '': a treatise on logic which was still used as a textbook in the modern Islamic world.

★ Five works on astronomy.

★ He also made notable contributions to theoretical geometry.
His works were translated into Hebrew and Latin and his influence is evident in Western treatises of late medieval and Renaissance times.

Contents

Further reading

Further reading

★ Al-Abharī's "Isāghūjī fi l-Manṭiq", , Edwin E., Calverley, Macdonald, 1933