Portrait of Augustus De Morgan

Augustus De Morgan

British mathematician and logician

Lived
1806–1871

Updated September 2026

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About Augustus De Morgan

Augustus De Morgan was a British mathematician and logician. He is best known for De Morgan's laws relating logical conjunction, disjunction, and negation, and for coining the term "mathematical induction", the underlying principles of which he formalized. De Morgan's contributions to logic are heavily used in many branches of mathematics, including set theory and probability theory, as well as other related fields such as computer science.

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Sources: book lists and dates from Wikidata and Open Library, ratings from Open Library readers, free texts from Project Gutenberg. Last updated September 2026.