Najm al-Dīn al-Qazwīnī al-Kātibī
Encyclopedia
Najm al-Dīn al-Qazwīnī al-Kātibī (died AH 675 / 1276 CE) was a Persian
Islamic philosopher
and logician
of the Shafi`i school. A student of Nasir al-Din al-Tusi
, he is the author of two major works, one on logic, Al-Risala al-Shamsiyya, and one on metaphysics and the natural sciences, Hikmat al-'Ain.
madrasah
s, right down until the twentieth century and is "perhaps the most studied logic textbook of all time". Al-Katibi's logic was largely inspired by the formal Avicennian system of temporal
modal logic
, but is more elaborate and departs from it in several ways. While Avicenna considered ten modalities and examined six of them, al-Katibi considers many more modalized propositions and examines thirteen which he considers 'customary to investigate'.
Persian people
The Persian people are part of the Iranian peoples who speak the modern Persian language and closely akin Iranian dialects and languages. The origin of the ethnic Iranian/Persian peoples are traced to the Ancient Iranian peoples, who were part of the ancient Indo-Iranians and themselves part of...
Islamic philosopher
Islamic philosophy
Islamic philosophy is a branch of Islamic studies. It is the continuous search for Hekma in the light of Islamic view of life, universe, ethics, society, and so on...
and logician
Logic in Islamic philosophy
Logic played an important role in Islamic philosophy .Islamic Logic or mantiq is similar science to what is called Traditional Logic in Western Sciences.- External links :*Routledge Encyclopedia of Philosophy: , Routledge, 1998...
of the Shafi`i school. A student of Nasir al-Din al-Tusi
Nasir al-Din al-Tusi
Khawaja Muḥammad ibn Muḥammad ibn Ḥasan Ṭūsī , better known as Naṣīr al-Dīn al-Ṭūsī , was a Persian polymath and prolific writer: an astronomer, biologist, chemist, mathematician, philosopher, physician, physicist, scientist, theologian and Marja Taqleed...
, he is the author of two major works, one on logic, Al-Risala al-Shamsiyya, and one on metaphysics and the natural sciences, Hikmat al-'Ain.
Logic
His work on logic, the al-Risāla al-Shamsiyya (Logic for Shams al-Dīn), was commonly used as the first major text on logic in SunniSunni Islam
Sunni Islam is the largest branch of Islam. Sunni Muslims are referred to in Arabic as ʾAhl ūs-Sunnah wa āl-Ǧamāʿah or ʾAhl ūs-Sunnah for short; in English, they are known as Sunni Muslims, Sunnis or Sunnites....
madrasah
Madrasah
Madrasah is the Arabic word for any type of educational institution, whether secular or religious...
s, right down until the twentieth century and is "perhaps the most studied logic textbook of all time". Al-Katibi's logic was largely inspired by the formal Avicennian system of temporal
Temporal logic
In logic, the term temporal logic is used to describe any system of rules and symbolism for representing, and reasoning about, propositions qualified in terms of time. In a temporal logic we can then express statements like "I am always hungry", "I will eventually be hungry", or "I will be hungry...
modal logic
Modal logic
Modal logic is a type of formal logic that extends classical propositional and predicate logic to include operators expressing modality. Modals — words that express modalities — qualify a statement. For example, the statement "John is happy" might be qualified by saying that John is...
, but is more elaborate and departs from it in several ways. While Avicenna considered ten modalities and examined six of them, al-Katibi considers many more modalized propositions and examines thirteen which he considers 'customary to investigate'.
See also
- Logic in Islamic philosophyLogic in Islamic philosophyLogic played an important role in Islamic philosophy .Islamic Logic or mantiq is similar science to what is called Traditional Logic in Western Sciences.- External links :*Routledge Encyclopedia of Philosophy: , Routledge, 1998...
- Avicennian logic