Logic
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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 fro
Young America's dilemma: Shall I be wise and great, or rich and powerful? (poster from 1901). This is an example of a false dilemma: an informal fallacy using a disjunctive premise that excludes viable alternatives.
Bertrand Russell made various contributions to mathematical logic.
Aristotle Altemps Inv 8575
Avicenne Avicenna Ibn Sina CIPB2067
Bertrand Russell
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Bertrand Arthur William Russell, 3rd Earl Russell, was an English philosopher, logician, and social reformer.
Logic
…mathematical logic, which pursued the program of logicism pioneered by philosopher-logicians such as Gottlob Frege, Alfred North Whitehead, and Bertrand Russell. Mathematical theories were supposed to be logical tautologies, and their program was to show this by means of a reduction of mathematics to logic…
Russell in 1936
Russell as a 4-year-old
Childhood home, Pembroke Lodge, Richmond Park, London
Russell at Trinity College, Cambridge, in 1891