Gholamhossein Mosahab (October 13, 1910 – 1979) was an Iranian

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

and

logic Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical truths. It examines how conclusions follow from premises based on the structure o ...

ian whose works have been praised by other scholars such as Iraj Afshar and

Najaf Daryabandari Najaf Daryabandari (; 23 August 1929 – 4 May 2020) was an Iranian writer and translator of works from English into Persian. Career Najaf was the son of Captain Khalaf Daryabandari, one of the first marine pilots of Iran. The Iranian Merchant ...

. Being fluent in

Persian Persian may refer to: * People and things from Iran, historically called ''Persia'' in the English language ** Persians, the majority ethnic group in Iran, not to be conflated with the Iranic peoples ** Persian language, an Iranian language of the ...

Arabic Arabic (, , or , ) is a Central Semitic languages, Central Semitic language of the Afroasiatic languages, Afroasiatic language family spoken primarily in the Arab world. The International Organization for Standardization (ISO) assigns lang ...

, French and English, he studied in

Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

and

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; and received his PhD from

Cambridge University The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, wo ...

. He was the founder of Mosahab Institute of Mathematics, Teacher Training University and was the director of the Institute of Mathematics of

Kharazmi University Kharazmi University (Abbreviation: KHU) (, ''Daneshgah-e Xuarazmi''), formerly Tehran University of Teacher Training (), is a public research university in Iran, KHU named after Khwarizmi (c. 780–850), Persian mathematician, astronomer and g ...

from 1972-1974. During the 1950s, when Persian scientific typography was flourishing, Mosahab invented a left slanted right-to-left font style that he named the ''Iranic'' ''font''. This term is still commonly used by typographers in Iran, often as a general term for any left slanted font. In 1955, Mosahab's ''Madkhale Manteghe Soorat'' (Introduction to Formal Logic) was the first scholarly writing in mathematical logic to be published in Iran. This work was given a positive review in 1957 by L. A. Zadeh in the ''Journal of Symbolic Logic''. Mosahab's most famous work in non-mathematical society is as the author of ''

The Persian Encyclopedia ''The Persian Encyclopedia'' (; Romanized as ''Dāyerat-ol-ma'āref-e Fārsi'') is one of the most comprehensive and authoritative Encyclopedias written in Persian Persian may refer to: * People and things from Iran, historically called ''Pers ...

'', written in the Persian language and consisting of 3 volumes. His methods of organizing and categorizing are still in use. The 1996 publication of ''The Persian Encyclopedia'' gave credited authorship to himself, Ahmad Aram and Mahmoud Mosahab. On June 28, 2009 it was announced that the 100th book released from the Society for the Appreciation of Cultural Works and Dignitaries had been allocated to the life, scientific and cultural works of the late Gholamhossien Mosahab. This tribute is written by Pegah Hajjan. In it are many of Mosahab's published works including an article entitled ''The First Trigonometry Book'', as well as appraisals from other scholars. He is the founder of the

Institute of Mathematical Research An institute is an organizational body created for a certain purpose. They are often research organisations (research institutes) created to do research on specific topics, or can also be a professional body. In some countries, institutes ca ...

(IMR) which is still known as one of the most important Iranian mathematical centers. The Institute of Mathematical Research started its work in October 1965 under the direction of Mosahab, as a semi-independent institute affiliated with Tarbiat Moaalem University. His sister Shams ol-Moluk was one of the first two women appointed to the

Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...

.Iranian Women You Should Know: Shams ol-Moluk Mosahab
Iran Wire, 12 May 2020

References

External links

همنشین بهار: یادی از دکتر غلامحسین مصاحب و فرزند ِ شریفش دایره المعارف

نخستين فرهنگ‌نامه‌ي نوين ايران

مقدمه‌ي مصاحب بر دايره‌المعارف فارسي

پديدآورندگان دايره‌المعارف فارسي

{{DEFAULTSORT:Mosahab, Gholamhossein 20th-century Iranian mathematicians 20th-century Iranian inventors Iranian encyclopedists 1910 births 1979 deaths Alumni of the University of Cambridge