MathML Equation Labels

I have been reading the MathML (1.01) spec and playing with some of the
browser plugins.  However, I have been unable to figure out how to code
equation lablels like this

(23)                x = y * z

Is this possible?  (I have focused on the MathML presentation tags).

Scott Gerard,
IBMUSM07(sgerard)
Dept. DXS
Phone 507-253-7896 Tie 553-7896
Mail on Lotus Notes: Scott Gerard/Rochester/IBM
Mail from the Internet: sgerard@us.ibm.com

Received on Monday, 8 January 2001 21:06:21 UTC