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System`Convert`MathMLDump`identifierQ

  • To: mathgroup at smc.vnet.net
  • Subject: [mg71046] System`Convert`MathMLDump`identifierQ
  • From: "Chris Chiasson" <chris at chiasson.name>
  • Date: Mon, 6 Nov 2006 02:52:56 -0500 (EST)

just a quick note

XML`MathML`ExpressionToMathML[a]
?System`Convert`MathMLDump`identifierQ

the last definition shown is:

System`Convert`MathMLDump`identifierQ[System`Convert`CommonDump`args$___]/;
    ArgumentCountQ[System`Convert`MathMLDump`identifierQ,
        Length[HoldComplete[System`Convert`CommonDump`args$]],1,1]&&
      False:=$Failed

AFAIK, this definition will not ever be used because one the arguments
of And under Condition is False. I think this situation could be
caused by putting Condition on level {1} instead of level {2} of the
definition. The Condition thus evaluates at the assignment of the
definition instead of at the use thereof.

-- 
http://chris.chiasson.name/


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