1-Position Among Sunnis.1.1-Characteristics of Ash'arism.2-Development.3-Important Figures.3.1-Abu l-Hasan al-Ash'ari, the Founder.3.2-Abu Bakr al-Baqillani.3.3-Abd al-Qahir al-Baghdadi.3.4-Imam al-Haramayn al-Juwayni.3.5-Abu Hamid al-Ghazali.3.6-Fakhar al-Din al-Razi.3.7-Adud al-Din al-Iji.3.8-Sa'd al-Din al-Taftazani.3.9-Al-Sayyid al-Sharif al-Jurjani.3.10-Ala al-Din al-Qushji.4-Theoretical Ideas.4.1-Position of Reason.4.2-Divinity.4.3-Rational Good and Evil.4.4-Voluntary Actions (Theory of Kasb).5-See also.6-Notes.7-References.