[sage-devel] Re: Scheme extends Parent

2010-07-12 Thread Andrey Novoseltsev
On Jul 12, 10:20 am, Marco Streng marco.str...@gmail.com wrote: Hi all, I'm getting a bit confused about Parent objects and why sage.schemes.generic.scheme.Scheme extends Parent. Schemes are not really containers of anything, right? Calling S.an_element() currently gives a

[sage-devel] Re: Scheme extends Parent

2010-07-12 Thread Marco Streng
On 12 jul, 18:54, William Stein wst...@gmail.com wrote: On Monday, July 12, 2010, Marco Streng marco.str...@gmail.com wrote: Hi all, I'm getting a bit confused about Parent objects and why sage.schemes.generic.scheme.Scheme extends Parent. Schemes are not really containers of