Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Who invented the brilliant $\mapsto$ notation for describing a function's action on a point, as in $x \mapsto x^2$?

This is in some sense a counterpart to Who came up with the arrow notation $x \rightarrow y$?

share|cite|improve this question
1  
It could have only been this guy – Mike F Jul 26 '13 at 1:53
    
And further, why do both it and lambda expressions exist? – James Wood Jul 18 '14 at 12:11
    
I guess it was Bourbaki but I can't find a reference right now. – lhf Dec 14 '15 at 18:16

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.