When1: 1911
When2: 1913
Who: Nicolai A. Vasiliev [Vasiliev, Nicolai A.]
What: mathematician
Where: Russia/Berlin, Germany
works\ Imaginary (non-Aristotelian) Logic [1912: non-Aristotelian logic]; Logic and metalogic [1913]
Detail: He lived 1880 to 1940 and helped develop three-valued logic [1910 to 1913].
Mathematical Sciences>Mathematics>History>Logic
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Date Modified: 2022.0224