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Re: Marking up Temporal Logic
> Not every Unicode character have named entities. Many mathematical
> operators have no named entity. Assuming you don't have a Unicode capable
> editor, numeric entities are the only way to access these characters.
although since this is a w3c list it is probably worth mentioning that
the entity declarations for mathml (unsurprisingly) name a lot more
characters than the html or (currently) standard unicode listings.
see the file bycodes.html in the mathml rec.
Still, I think even the extended lists in MathML don't cover all
the symbols required for temporal logic (and numeric references don't
help either as the characters simply aren't there).
David
References: