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Revision 5405

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Author: dpvc
Date: Wed Aug 22 23:38:13 2007 UTC (12 years, 2 months ago)
Log Message:
Revamp the isReduced() method for Unions and Sets so that it produces
error indicators in addition to the T/F result.  The answer checker
now uses that to produce more meaningful error messages for students
(in the past it always said "Your union can be produced without
overlaps" even when that was not the actual reason why the union is
not reduced).

Changed paths:

Path Details
Directorytrunk/pg/lib/Value/AnswerChecker.pm modified , text changed
Directorytrunk/pg/lib/Value/Set.pm modified , text changed
Directorytrunk/pg/lib/Value/Union.pm modified , text changed

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