Logic Matters
@logicmatters.bsky.social
Recovering philosopher, but still interested in logic and abstract nonsense (and music). Occasionally blogs at logicmatters.net
Reposted by Logic Matters
Paul Klee
The Bounds of the Intellect, 1927
The Bounds of the Intellect, 1927
April 21, 2025 at 8:55 AM
Paul Klee
The Bounds of the Intellect, 1927
The Bounds of the Intellect, 1927
Daily Nous has a nice list of currently active philosophy blogs at dailynous.com/2025/09/18/t... It doesn't mention Logic Matters, but it staggers on into its twentieth year, still with occasional logic and phil maths content, at www.logicmatters.net/blog
The Philosophy Blogosphere in 2025 - Daily Nous
What philosophy blogs are active in 2025? Below is a list of philosophy blogs and blog-newsletters, mostly limited to ones that have been updated at least once in the past month. I'm sure I've missed some. And some active blogs may have been on a brief hiatus and so unfairly excluded by the "one month"
dailynous.com
September 21, 2025 at 2:07 PM
Daily Nous has a nice list of currently active philosophy blogs at dailynous.com/2025/09/18/t... It doesn't mention Logic Matters, but it staggers on into its twentieth year, still with occasional logic and phil maths content, at www.logicmatters.net/blog
New double CD of Lea Desandre and Thomas Dunford (and the Jupiter Ensemble) performing Dowland and Purcell. Absolutely superb playing and often extraordinarily moving. (Had the good fortune to see them live at Wigmore Hall last week -- just stunning.)
September 21, 2025 at 2:02 PM
New double CD of Lea Desandre and Thomas Dunford (and the Jupiter Ensemble) performing Dowland and Purcell. Absolutely superb playing and often extraordinarily moving. (Had the good fortune to see them live at Wigmore Hall last week -- just stunning.)
CD Forthcoming soon! Love the cover photo :)
August 23, 2025 at 9:09 PM
CD Forthcoming soon! Love the cover photo :)
First 5 star Amazon rating AND first typo report for new edition of *Introducing Category Theory*. Ah well ...
July 13, 2025 at 8:07 AM
First 5 star Amazon rating AND first typo report for new edition of *Introducing Category Theory*. Ah well ...
New blog post ... on Van Gogh, Deryn Rees-Jones (@notjustdancing.bsky.social), Proust, Clive James: www.logicmatters.net/2025/07/12/p...
Poetic serendipity - Logic Matters
I have written before about the pleasure of serendipitous finds in charity second-hand bookshops. It isn’t the matter of saving a few pounds (or of giving the money to a charity rather than a chain bo...
www.logicmatters.net
July 12, 2025 at 2:21 PM
New blog post ... on Van Gogh, Deryn Rees-Jones (@notjustdancing.bsky.social), Proust, Clive James: www.logicmatters.net/2025/07/12/p...
I've updated my page of links to entry-level lecture notes and online books on category theory.
The page is visited a lot (3K times a month) so I ought to try to keep it in good shape. So any additions/corrections will be really welcome!
www.logicmatters.net/categories/
#mathsky #philsky
The page is visited a lot (3K times a month) so I ought to try to keep it in good shape. So any additions/corrections will be really welcome!
www.logicmatters.net/categories/
#mathsky #philsky
June 28, 2025 at 11:12 AM
I've updated my page of links to entry-level lecture notes and online books on category theory.
The page is visited a lot (3K times a month) so I ought to try to keep it in good shape. So any additions/corrections will be really welcome!
www.logicmatters.net/categories/
#mathsky #philsky
The page is visited a lot (3K times a month) so I ought to try to keep it in good shape. So any additions/corrections will be really welcome!
www.logicmatters.net/categories/
#mathsky #philsky
ICYMI At last, there is a pbk version of my notes *Introducing Category Theory*, 2nd edn., ISBN 1068346701. Amazon-only print on demand to keep the price minimal for a 500pp book. Or you can still download the PDF from logicmatters.net. Spread the word :)
#mathsky #philsky
#mathsky #philsky
June 27, 2025 at 12:53 PM
ICYMI At last, there is a pbk version of my notes *Introducing Category Theory*, 2nd edn., ISBN 1068346701. Amazon-only print on demand to keep the price minimal for a 500pp book. Or you can still download the PDF from logicmatters.net. Spread the word :)
#mathsky #philsky
#mathsky #philsky
Sound the trumpets ... At last, at last, there is a pbk version of my notes *Introducing Category Theory*, 2nd edn., ISBN 1068346701. Amazon-only print on demand to keep the price minimal for a 500pp book. Or you can still download the PDF from logicmatters.net. Spread the word :)
June 26, 2025 at 7:47 AM
Sound the trumpets ... At last, at last, there is a pbk version of my notes *Introducing Category Theory*, 2nd edn., ISBN 1068346701. Amazon-only print on demand to keep the price minimal for a 500pp book. Or you can still download the PDF from logicmatters.net. Spread the word :)
The linked piece by Keith Frankish on what LLMs are doing is (characteristically) excellent.
I strongly agree with this. LLMs give the misleading appearance of doing all the things we do with language. In fact, they do none of them and instead do just one, highly unusual thing with it. (For explanation, see: keithfrankish.github.io/articles/Fra...)
June 18, 2025 at 9:48 AM
The linked piece by Keith Frankish on what LLMs are doing is (characteristically) excellent.
Simply wonderful Schubert playing from Elisabeth Brauß
www.bbc.co.uk/sounds/play/... From about 18 mins into the programme (available for about a month).
www.bbc.co.uk/sounds/play/... From about 18 mins into the programme (available for about a month).
🇺🇦 #NowPlayingashtag/NowPlaying" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#NowPlaying on BBC #Radio3's #ClassicalLive
Franz Schubert & Elisabeth Brauss:
🎵 Sonata in A major D.664 for piano
#BBCRadio3 #FranzSchubert #ElisabethBrauss
June 13, 2025 at 9:48 AM
Simply wonderful Schubert playing from Elisabeth Brauß
www.bbc.co.uk/sounds/play/... From about 18 mins into the programme (available for about a month).
www.bbc.co.uk/sounds/play/... From about 18 mins into the programme (available for about a month).
You can now download a complete version of *Introducing Category Theory* from www.logicmatters.net/categories. Just needs final proofreading.
Has it any virtues? Well, at least it might distract you for a while, as the world goes to hell in a handcart ...
#mathsky #philsky
Has it any virtues? Well, at least it might distract you for a while, as the world goes to hell in a handcart ...
#mathsky #philsky
June 5, 2025 at 1:56 PM
You can now download a complete version of *Introducing Category Theory* from www.logicmatters.net/categories. Just needs final proofreading.
Has it any virtues? Well, at least it might distract you for a while, as the world goes to hell in a handcart ...
#mathsky #philsky
Has it any virtues? Well, at least it might distract you for a while, as the world goes to hell in a handcart ...
#mathsky #philsky
Reposted by Logic Matters
‘The Easter bunny was a hare long before he was a rabbit; the hare was sacred to Eostre, the Saxon goddess of spring – no rabidly cute bundle of fluff.’
Katherine Rundell considers the hare: www.lrb.co.uk/the-paper/v4...
Katherine Rundell considers the hare: www.lrb.co.uk/the-paper/v4...
Katherine Rundell · Consider the Hare
‘The cat of the wood,’ Heaney calls them. ‘The stag of the cabbages.’ If there is magic in this world, some part...
www.lrb.co.uk
April 19, 2025 at 12:47 PM
‘The Easter bunny was a hare long before he was a rabbit; the hare was sacred to Eostre, the Saxon goddess of spring – no rabidly cute bundle of fluff.’
Katherine Rundell considers the hare: www.lrb.co.uk/the-paper/v4...
Katherine Rundell considers the hare: www.lrb.co.uk/the-paper/v4...
Elisabeth Brauß playing the last movement of Beethoven's 4th Piano Concerto. Joyous!
www.youtube.com/watch?v=OJX0...
www.youtube.com/watch?v=OJX0...
Elisabeth Brauß: Beethoven - Piano Concerto No.4 (Mvt. 3)
YouTube video by Elisabeth Brauß
www.youtube.com
May 28, 2025 at 6:15 PM
Elisabeth Brauß playing the last movement of Beethoven's 4th Piano Concerto. Joyous!
www.youtube.com/watch?v=OJX0...
www.youtube.com/watch?v=OJX0...
Here are links to a dozen blog posts "Schubert on Sunday", linking mostly to some wonderfully good YouTube videos. You might well have missed some -- take a quick look!
#Schubert
www.logicmatters.net/tag/schubert...
#Schubert
www.logicmatters.net/tag/schubert...
Schubert on Sunday Archives - Logic Matters
www.logicmatters.net
May 26, 2025 at 6:09 PM
Here are links to a dozen blog posts "Schubert on Sunday", linking mostly to some wonderfully good YouTube videos. You might well have missed some -- take a quick look!
#Schubert
www.logicmatters.net/tag/schubert...
#Schubert
www.logicmatters.net/tag/schubert...
There's a terrific new Schubert CD by Charlotte Saluste-Bridoux and her piano duo partner Joseph Havlat.
www.delphianrecords.com/products/sch...
Here's a link to their playing the Fantasia D. 934 at Wigmore Hall (and some other Schubert links too). Enjoy!
www.logicmatters.net/tag/schubert...
www.delphianrecords.com/products/sch...
Here's a link to their playing the Fantasia D. 934 at Wigmore Hall (and some other Schubert links too). Enjoy!
www.logicmatters.net/tag/schubert...
May 25, 2025 at 5:59 PM
There's a terrific new Schubert CD by Charlotte Saluste-Bridoux and her piano duo partner Joseph Havlat.
www.delphianrecords.com/products/sch...
Here's a link to their playing the Fantasia D. 934 at Wigmore Hall (and some other Schubert links too). Enjoy!
www.logicmatters.net/tag/schubert...
www.delphianrecords.com/products/sch...
Here's a link to their playing the Fantasia D. 934 at Wigmore Hall (and some other Schubert links too). Enjoy!
www.logicmatters.net/tag/schubert...
Reposted by Logic Matters
@classicalmusic
Wolfgang Amadeus Mozart - 12 Variationen über "Ah, vous dirai-je Maman" für Klavier C-Dur, KV 265
Elisabeth Brauß, Klavier
https://www.youtube.com/watch?v=3d7L14O9BOY
#Music #classic #piano
Wolfgang Amadeus Mozart - 12 Variationen über "Ah, vous dirai-je Maman" für Klavier C-Dur, KV 265
Elisabeth Brauß, Klavier
https://www.youtube.com/watch?v=3d7L14O9BOY
#Music #classic #piano
May 14, 2025 at 3:19 PM
@classicalmusic
Wolfgang Amadeus Mozart - 12 Variationen über "Ah, vous dirai-je Maman" für Klavier C-Dur, KV 265
Elisabeth Brauß, Klavier
https://www.youtube.com/watch?v=3d7L14O9BOY
#Music #classic #piano
Wolfgang Amadeus Mozart - 12 Variationen über "Ah, vous dirai-je Maman" für Klavier C-Dur, KV 265
Elisabeth Brauß, Klavier
https://www.youtube.com/watch?v=3d7L14O9BOY
#Music #classic #piano
Schubert on Sunday. A quite terrific performance of the Trout Quintet.
www.gstaaddigitalfestival.ch/en/video/pat...
(You may have to sign up to the Gstaad site, but that's free.)
www.gstaaddigitalfestival.ch/en/video/pat...
(You may have to sign up to the Gstaad site, but that's free.)
Patricia Kopatchinskaja plays Schubert’s «Trout Quintet» - Gstaad Digital Festival
www.gstaaddigitalfestival.ch
April 27, 2025 at 3:57 PM
Schubert on Sunday. A quite terrific performance of the Trout Quintet.
www.gstaaddigitalfestival.ch/en/video/pat...
(You may have to sign up to the Gstaad site, but that's free.)
www.gstaaddigitalfestival.ch/en/video/pat...
(You may have to sign up to the Gstaad site, but that's free.)
I lied. I said "apart from proof reading for typos and thinkos, this [posted yesterday] is the version which will be paperbacked". But today there's a new version of *Introducing Category Theory* with improved last chapter. And so it goes.
www.logicmatters.net/categories/
#mathsky #philsky
www.logicmatters.net/categories/
#mathsky #philsky
April 27, 2025 at 3:51 PM
I lied. I said "apart from proof reading for typos and thinkos, this [posted yesterday] is the version which will be paperbacked". But today there's a new version of *Introducing Category Theory* with improved last chapter. And so it goes.
www.logicmatters.net/categories/
#mathsky #philsky
www.logicmatters.net/categories/
#mathsky #philsky
There's a new complete version of *Introducing Category Theory* downloadable at logicmatters.net/categories
Apart from proof reading for typos and thinkos, this is the version which will be paperbacked (as cheaply as possible) in May. So let me know of any errors, however small!
#mathsky #philsky
Apart from proof reading for typos and thinkos, this is the version which will be paperbacked (as cheaply as possible) in May. So let me know of any errors, however small!
#mathsky #philsky
April 26, 2025 at 4:43 PM
There's a new complete version of *Introducing Category Theory* downloadable at logicmatters.net/categories
Apart from proof reading for typos and thinkos, this is the version which will be paperbacked (as cheaply as possible) in May. So let me know of any errors, however small!
#mathsky #philsky
Apart from proof reading for typos and thinkos, this is the version which will be paperbacked (as cheaply as possible) in May. So let me know of any errors, however small!
#mathsky #philsky
My good friend, the logician Thomas Forster, tells me that he once shared an office with Giovanna Corsi, who at one point shared an office with Jean van Heijenoort, who was Trotsky's personal secretary in the 1930s .... Just four handshakes from Trotsky.
April 5, 2025 at 11:04 AM
My good friend, the logician Thomas Forster, tells me that he once shared an office with Giovanna Corsi, who at one point shared an office with Jean van Heijenoort, who was Trotsky's personal secretary in the 1930s .... Just four handshakes from Trotsky.
Belatedly (real life happens ...), there's a complete version of my *Introducing Category Theory*. A month's tinkering now, and there should be a cheap pbk. But you can download a draft for free from www.logicmatters.net/categories
#mathsky #philsky
#mathsky #philsky
April 4, 2025 at 2:42 PM
Belatedly (real life happens ...), there's a complete version of my *Introducing Category Theory*. A month's tinkering now, and there should be a cheap pbk. But you can download a draft for free from www.logicmatters.net/categories
#mathsky #philsky
#mathsky #philsky
Elisabeth Brauss concert a week ago … Bach, Beethoven, Hough, Schumann, Prokofiev. Wonderful performances very engagingly filmed. m.youtube.com/watch?v=4gqb...
Elisabeth Brauss | 2024 - 2025 Rising Stars Series
YouTube video by Gilmore Piano Festival
m.youtube.com
March 18, 2025 at 6:26 PM
Elisabeth Brauss concert a week ago … Bach, Beethoven, Hough, Schumann, Prokofiev. Wonderful performances very engagingly filmed. m.youtube.com/watch?v=4gqb...
The terrific Elisabeth Brauß enjoying herself playing Mozart. www.ardmediathek.de/video/ard-kl...
ARD Klassik: Mozart · 12 Variationen über 'Ah, vous dirai-je, Maman' · Elisabeth Brauß · BR - hier anschauen
Elisabeth Brauß spielt 12 Variationen über 'Ah, vous dirai-je, Maman' für Klavier C-Dur, KV 265 von Wolfgang Amadeus Mozart in einer Aufnahme von 2025. Eine Produktion von BR-Klassik.
www.ardmediathek.de
March 10, 2025 at 1:02 PM
The terrific Elisabeth Brauß enjoying herself playing Mozart. www.ardmediathek.de/video/ard-kl...
Great tits have started today zipping in and out of the bird box on the garage, carrying nesting material …
… these days we take the little moments of hope when we can!
… these days we take the little moments of hope when we can!
March 10, 2025 at 12:56 PM
Great tits have started today zipping in and out of the bird box on the garage, carrying nesting material …
… these days we take the little moments of hope when we can!
… these days we take the little moments of hope when we can!