On 03/12/2009 09:53 PM, Bill Page wrote: > But why doesn't the following constitute a ValueError? > > sage: a=GF(2)(1); b=GF(5)(1); c==11 > True > sage: a==c > True > sage: b==c > True > sage: a==b > False > > ---- > > Equality isn't even transitive! This False result could easily mask a > simple error in the coding of some algorithm.
That non-transitivity basically means that == is not an equivalence function. Ehm, well, on which set anyway? Is there a function in Sage that really behaves like mathematical equality? Ralf --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
