[isabelle] theory FSet exists twice

Hi list,

Iâm trying to use Nominal2 (as shipped in AFP-2016) in a theory that
also usesÂÂ"~~/src/HOL/Library/FSet". This leads to

exception THEORY raised (line 221 of "context.ML"):
 Duplicate theory name
 {..., BNF_Greatest_Fixpoint, Filter, Main, Conditionally_Complete_Lattices, FSet}
 {..., Quotient_Product, Quotient_Option, Multiset, Quotient_List, FSet}

The problem seems to be that Nominal2_Base imports

Can I work around this problem without modifying HOL or Nominal2?

Also, should the ~~/src/HOL/Quotient_Examples/FSet theory be renamed to
avoid this problem?



Dr. rer. nat. Joachim Breitner
Wissenschaftlicher Mitarbeiter

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