Annali di Matematica Pura ed Applicata

, Volume 88, Issue 1, pp 155–176 | Cite as

Urysohn’s lemma for g-functions and homotopy extension theorem

  • R. G. Lintz


We give here a generalization of the classical Urysohn’s lemma for g-functions and apply it to the proof of the homotopy extension theorem for g-functions. It was also necessary to generalize the concept of algebraic operation, what is interesting in itself.


Extension Theorem Algebraic Operation Homotopy Extension Homotopy Extension Theorem 
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Copyright information

© Nicola Zanichelli Editore 1971

Authors and Affiliations

  • R. G. Lintz
    • 1
  1. 1.McMaster UniversityHamiltonCanada

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