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Property of transc1.log states converse implication #15

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lars-hellstrom opened this issue Aug 23, 2017 · 1 comment
Open

Property of transc1.log states converse implication #15

lars-hellstrom opened this issue Aug 23, 2017 · 1 comment
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@lars-hellstrom
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transc1.ocd states as a property of the log symbol that (both as FMP and CMP):

a^b = c implies log_a c = b

This is the converse of what is mathematically true.

@JamesHDavenport
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JamesHDavenport commented Aug 25, 2017 via email

lars-hellstrom added a commit to lars-hellstrom/OpenMath.github.io that referenced this issue Sep 28, 2017
One thing left untouched here is the example of a CD symbol definition
(transc1#log). That needs more attention, because the implication given
is wrong (see issue OpenMath/CDs#15), and also it seems to be based on
an older version of the CD (but the error is also in the present CD).

In addition, I've included some OMS URIs such as
  http://www.openmath.org/cd/nums1#rational
which currently fail with messages such as
  The requested URL /var/www/www.openmath.org/www/nums1.xhtml
  was not found on this server.
I think that is a misconfiguration on (the old) www.openmath.org however,
so it probably shouldn't call for a change here.
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