Log24

Tuesday, December 1, 2020

How many lightbulbs … ?

Filed under: General — Tags: — m759 @ 10:59 pm

Thursday, November 8, 2018

Geometry Lesson

Filed under: G-Notes,General,Geometry — Tags: , — m759 @ 12:00 am

From "The Trials of Device" (April 24, 2017) —

Wittgenstein's pentagram and 4x4 'counting-pattern'

Pentagon with pentagram    

See also Wittgenstein in a search for "Ein Kampf " in this journal.

Monday, April 24, 2017

The Trials of Device

Filed under: General,Geometry — Tags: , , — m759 @ 3:28 pm

"A blank underlies the trials of device"
— Wallace Stevens, "An Ordinary Evening in New Haven" (1950)

A possible meaning for the phrase "the trials of device" —

See also Log24 posts mentioning a particular device, the pentagram .

For instance —

Wittgenstein's pentagram and 4x4 'counting-pattern'

Related figures

Pentagon with pentagram    

Friday, September 16, 2016

For Albee’s Walk of Fame

Filed under: General — Tags: — m759 @ 10:00 pm

Every picture tells a story.

Wittgenstein’s Pentagram

Filed under: General — Tags: — m759 @ 12:00 pm

Related material —

See the story of a British man who reportedly had a doctorate in
physics and mathematics and became a witchcraft enthusiast.
He is said to have died at 85 on September 11, 2016.

As Wittgenstein noted, it is not always clear whether the pentagram
expresses a mathematical or an experiential proposition.

For some mathematical propositions related to the pentagram,
see (for instance) John Baez's slides for his 2008 Glasgow
lecture on the number 5.

For som experiential propositions, see Pentagram in this journal.

A Counting-Pattern

Filed under: General,Geometry — Tags: , — m759 @ 10:48 am

Wittgenstein, 1939

Dolgachev and Keum, 2002

IMAGE- Dolgachev and Keum, coordinatization of the 4x4 array in 'Birational Automorphisms of Quartic Hessian Surfaces,' AMS Transactions, 2002

For some related material, see posts tagged Priority.

Powered by WordPress