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In 1891 Peano founded Rivista di matematica, a journal devoted mainly to logic and the foundations of mathematics

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One of the founders of mathematical logic btw

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One of the founders of mathematical logic btw

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He was great at finding errors in things that another person did

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He was great at finding errors in things that another person did

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If the set X contains 1 and for every natural number

n also its successor

n" then the natural numbers form a subset of X

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Natural numbers with the same successor are the same

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1 is not the successor of a natural number

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Every natural number

n has a natural number

n' as a successor

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1 is a natural number

(Yeah, I know, you knew that, at least i hope so)

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See? All connected :)

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In 1889 he published his famous axioms, called Peano axioms, which defined the natural numbers in terms of sets

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His first "big thing" was finding an error in a standard definition in 1882

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20 April 1932

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In college, he was the only one who choose (on his third year) to keep studying pure mathematics, instead of changing to engineering, like all other with sanity

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27 August 1858

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... at once a landmark in the history of mathematical logic and of the foundations of mathematics.

By:  H C Kennedy, Peano : Life and Works of Giuseppe Peano (Dordrecht, 1980).