1-Definition.2-Subject-Matter.3-History.4-Scholars.5-Issues and Problems.6-Significant Problems.6.1-Reliability of the Apparent Meanings of the Holy Qur'an.6.2-The Reliability of the Tradition.6.3-Reliability of Reason.6.4-Reliability of the Consensus.6.5-Practical Principles.7-Some Disagreements between Shiite and Sunni Scholars in Usul al-Fiqh.7.1-Analogy (Qiyas).7.2-Consensus.7.3-Istihsan (Preferences).7.4-Al-Masalih al-Mursala (Public Interest).7.5-Factivity and Fallibility.8-See Also.9-References.
