• Corpus ID: 119140053

Semi-Cartesian squares and the Snake Lemma

@inproceedings{Raoult2017SemiCartesianSA,
  title={Semi-Cartesian squares and the Snake Lemma},
  author={Jean-Claude Raoult},
  year={2017}
}
  • J. Raoult
  • Published 11 November 2017
  • Mathematics
The well-known snake lemma is proved entirely within category theory, without the help of "points with value in..." \`a la Grothendieck, nor pseudo-elements as in Guglielmetti & Zaganidis. Instead, we define and use consistently semi-cartesian squares, which were promoted by C. Chevalley. 

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