John,
Now that I am aware of the arguments
in the previous messages, I understand
very clearly what is the meaning of com and
dac in the standard, and I believe that there is
no need to change the way in which they are
written.
However, I did get confused at first and
I believe other people are likely to be confused
too if they do not see the example. Once
one looks at the example things become
very clear and there is no doubt left
regarding the sense in which continuity
is used in com's and dac's definition.