Le mercredi 25 novembre 2015 12:28:45 UTC+1, vdelecroix a écrit : > > Hello, >
[ Snip... ] The only way to fix Unknown would be to patch (non trivially) Python. > Boolean inherits from int... and it would be hard to have a third party > "Unknown" coherent with this inheritance. There was a slightly related > proposal, PEP 335, which was rejected with good reasons. We could > propose a new PEP for trooleans but it is not clear what should be the > concrete implementation. > Łukasiewicz 's logic ? > > Vincent > > On 25/11/15 01:56, kcrisman wrote: > > On social media: > > > > sage: False or Unknown > > Unknown > > sage: Unknown or False > > False > > sage: False and Unknown > > False > > sage: Unknown and False > > Unknown > > > > It does seems somewhat inconsistent... > > > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
