Project icon: lavishly furnished initial letter with a painting of Ptolemy using an astrolab.


Arabus et Latinus

_ (the underscore) is the placeholder for exactly one character.
% (the percent sign) is the placeholder for no, one or more than one character.

At the beginning and at the end, these placeholders are superfluous.

Work C.1.0980

Abū Saʿd al-ʿAlāʾ b. Sahl‎
al-Burhān ʿalā anna l-falak laysa huwa fī ghāyat al-ṣafāʾ