content mark-up: operators vs. relations?

Hello all,

The MathML spec makes a distinction between operators and relations, but the
dtd does not.

Should the dtd validate that only operators are used in apply tags and only
relations are used in reln tags? Is the dtd too generous in what it
considers valid content-mark-up?

IBM techexplorer, for example, will only render content mark-up which
conforms to the above suggested validation.

Sorry if this question has been raised previously.

Hugh J. Devlin

Received on Thursday, 21 October 1999 14:40:41 UTC