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  1. Corrected a link. Before the word “derivation” linked to the page for derivations in differential algebra.

    Sam Winnick

    diff, v27, current

  2. Corrected a second incorrect “derivation” link.

    Sam Winnick

    diff, v27, current

  3. Added link to definition


    diff, v29, current

    • CommentRowNumber5.
    • CommentAuthorDavid_Corfield
    • CommentTimeNov 3rd 2022
    • (edited Nov 3rd 2022)

    But type formation is its own page, and ’type formation rule’ is already a redirect for type formation.

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeNov 3rd 2022

    I am fixing it…

    diff, v31, current

  4. moving relevant redirects over to conversion rule


    diff, v32, current

  5. moving some redirects to term elimination


    diff, v33, current

    • CommentRowNumber9.
    • CommentAuthoreonmorgan
    • CommentTimeNov 4th 2022

    Is a common term for a class of proof systems composed of simple and self-evident inference rules based on methods of proof and traditional ways of reasoning that have been used in deductive practice since antiquity.affordable towing services

    • CommentRowNumber10.
    • CommentAuthorUrs
    • CommentTimeJan 22nd 2023
    • (edited Jan 22nd 2023)

    added pointer to

    and expanded out the bibidata for this item:

    diff, v35, current

    • CommentRowNumber11.
    • CommentAuthorUrs
    • CommentTimeJan 23rd 2023

    properly brought out this bibitem:

    • Gerhard Gentzen, Investigations into Logical Deduction, in M. E. Szabo (ed.), The Collected Papers of Gerhard Gentzen, Studies in Logic and the Foundations of Mathematics 55, Springer (1969) 68-131 [ISBN:978-0-444-53419-4, pdf]

    diff, v37, current

    • CommentRowNumber12.
    • CommentAuthorUrs
    • CommentTimeFeb 18th 2023

    added pointer to:

    diff, v39, current