On 23 Jun 2008, at 06:19, Dave Cridland wrote:
A final point is that actually phrasing it as "MUST X or Y" is problematic since English lacks the possibility of parenthesis for precendence - hence a stronger binding, such as MUST X unless Y, is preferable.
Preferable to me would be to avoid such ambiguity altogether by breaking things down into simpler atoms ("If Y then MUST X; if !Y then MAY X", or whatever the context supports). More complex constructions seem certain to lead to confusion to native readers of English, never mind those whose more usual tongue is something else.
Joe _______________________________________________ IETF mailing list IETF@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf