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Math Help - Exact Sequences - functions on longright arrows

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    Super Member Bernhard's Avatar
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    Exact Sequences - functions on longright arrows

    In exact sequences, a convenient notation is to have a function symbol like  \psi on a longrightarrow.

    I have given an example of this in the attachment so it is clear what notation I am requesting help with - see attachment "Exact Sequences - Latex Question"

    I have also provided an attachment showing the start of Section 10.5 (Exact Sequences) of Dummit and Foote where there are a number of examples of the terminology I am hoping to use in Latex encoded postings.

    If someone can help me with this problem I would be most grateful

    Peter
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