Changes between Version 3 and Version 9 of Ticket #21879


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Timestamp:
Nov 15, 2016, 8:25:02 AM (6 years ago)
Author:
saraedum
Comment:

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  • Ticket #21879

    • Property Status changed from new to needs_review
    • Property Cc roed caruso added
    • Property Branch changed from to u/saraedum/implement_is_injective_for_ring_homomorphisms
    • Property Commit changed from to 689028182d31068228562360264e86af492aadf9
  • Ticket #21879 – Description

    v3 v9  
    66NotImplementedError
    77}}}
    8 This makes the method `is_subring` essentially useless since it relies on `is_injective` of the "natural map":
     8This makes the method `is_subring` mostly useless since its default implementation relies on `is_injective` of the "natural map":
    99{{{
    1010sage: GF(3).is_subring(GF(9))