When1: 1830
When2: 1849
Who: Augustus De Morgan [De Morgan, Augustus]
What: mathematician
Where: England
works\ Elements of Arithmetic [1830]; Induction [1838]; Formal Logic [1847]; Trigonometry and Double Algebra [1849]
Detail: He lived 1806 to 1871 and studied divergent series. He invented De Morgan's laws [1849] of algebra of classes: commutation, association, inverse, identity, distribution, and null.
Mathematical Sciences>Mathematics>History>Algebra
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Date Modified: 2022.0224