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I try not to spend too much time reading substacks (though there is much good, if depressing, writing to be found).
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Here is the third updated chapter of the 2022 Beginning Mathematical Logic Study Guide, this time on proof theory.
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As announced, I am beginning to revise the 2022 Beginning Mathematical Logic.
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In the most recent issue of the BBC Music Magazine, the “Building a Library” feature is devoted to Shostakovich’s much played, much recorded, 8th String Quartet.
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As announced, I am beginning to revise the 2022 Beginning Mathematical Logic.
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A month full of distractions, fatigue, brain fog.
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There have been considerable distractions … So I have had less time and inclination for logical matters in the last couple of weeks.
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On a very hot night, when it must have been so hard to keep the gut strings in tune, a Wigmore Hall concert with the always wondrous Lea Desandre, Thomas Dunford and the Jupiter Ensemble singing and playing Handel.
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Back from six days in Ljubljana.
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Two apologies are in order.
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I am thinking about recommendations for the Study Guide for readings on first-order logic, and it has been a while since I looked at the offering from the admirable Open Logic Project.
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The domain name logicmatters.net now points to this new site freely hosted on GitHub.
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As promised, a hardback of Introducing Category Theory was published on June 1st, and is beginning to appear listed on booksellers’ online sites – search with the ISBN 106834671X.
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I said a week or so ago that I was going to investigate moving the Logic Matters website from its current expensively hosted Wordpress incarnation to a (slimmer?)
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The Logic Matters blog started on 9 March 2006.
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The revised/corrected third edition of Introducing Category Theory is now available as a paperback.
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There have been so many moving obituaries and fond tributes.
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What have I learnt over recent weeks, preparing a corrected version of Introducing Category Theory, invoking – at various stages – my friends Claude, Gemini and ChatGPT as proof-reading assistants?
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The end is in sight.
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A very interesting new blog post by Tim Gowers on his recent experiences with ChatGPT 5.5 Pro.