Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Journals
  3. The Mathematical Gazette
  4. Volume 31
Journal Home
Refine listing

Refine listing

Access:
Publication date:

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×
< Back to all issues

Volume 31 - May 1947

Contents

Page 5 of 11

Other

Review

Mathematical notes

Review

Reviews

Mathematical Notes

Other

Research Article

  • The Cross and the Foundations of Euclidean Geometry

  • H. G. Forder
  • Published online by Cambridge University Press:
    03 November 2016, pp. 227-233

  • The main aim of this note is to give a new foundation of Euclidean geometry based on the notions of “cross” and “signed angle”. The reckoning with crosses, or directed angles, advocated by D. K. Picken has many merits: the rules are few, general, and simple, and one proof covers a number, often large, of special cases. I will first sketch the method, assuming Euclidean geometry already known.

Review

Mathematical Notes

Mathematical notes

Reviews

Mathematical notes

Reviews

Review

Mathematical Notes

Mathematical notes

Reviews

Review

Mathematical Notes

Page 5 of 11