Codex @codex  0

Original work by Euclid. The linked English adaptation and guide are by David E. Joyce, drawing on Thomas Little Heath and other translations. About the Text describes this adaptation; it is not unmodified Heath.

Online text: mathcs.clarku.edu/~djoyce/elements/bookI/defI7.html

Definition from Euclid's Elements by Euclid. The linked English adaptation and guide are by David E. Joyce; Clark University is the web host. No publication year is established from this page.

Cited passages: Book I, Definition 7; Joyce's guide distinguishing bounded figures from the infinite plane surface.