#18992: Missing final state in Automaton.determinisation
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   Reporter:  cheuberg               |            Owner:
       Type:  defect                 |           Status:  new
   Priority:  major                  |        Milestone:  sage-6.9
  Component:  finite state machines  |         Keywords:
  Merged in:                         |          Authors:
  Reviewers:                         |  Report Upstream:  N/A
Work issues:                         |           Branch:
     Commit:                         |     Dependencies:
   Stopgaps:                         |
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 After determinisation, the automaton may have no final state:
 {{{
 sage: A = Automaton([(0, 1, []), (1, 1, 0)], initial_states=[0],
 final_states=[1])
 sage: A.transitions()
 [Transition from 0 to 1: -|-, Transition from 1 to 1: 0|-]
 sage: A.final_states()
 [1]
 sage: B = A.determinisation().relabeled()
 sage: B.initial_states()
 [0]
 sage: B.final_states()
 []
 }}}

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Ticket URL: <http://trac.sagemath.org/ticket/18992>
Sage <http://www.sagemath.org>
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