Re: a question about <forall> element

At 2003-05-05T10:03-0700, Gang Du wrote:-

> In MathML 2 specification, content markup element <forall> must be
> used in conjunction with one or more bound variables, an optional
> condition element, and an assertion which should be an <apply>
> element or a deprecated <reln> element. Consider the following
> statement: "for all x, x < 0, x". Since the assertion here is
> just a single variable, how to translate this into a valid content
> markup? Or this is not a valid forall statement?

The last part is meant to be a predicate, so that's not likely to be a
sensible forall statement. However, "forall x, x in X, x" might just be.
Even so, that is really a pathological case, and I don't think it would
be overly painful to apply the identity function.


Tim Bagot

Received on Monday, 5 May 2003 16:55:39 UTC