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Is a mathematician who travels to work commutative?

(no subject)

Date: 2003-08-29 04:29 am (UTC)
From: [identity profile] keirf.livejournal.com
I thought the original was - "what's purple and commutes?"

What's yellow and equivalent to the Axiom of Choice?
What jumps of cliffs and can construct an orthogonal basis?

(no subject)

Date: 2003-08-29 05:10 am (UTC)
From: [identity profile] imc.livejournal.com
What's yellow and equivalent to the Axiom of Choice?

Zorn's lemon

What jumps of cliffs and can construct an orthogonal basis?

Um. . . Gram Schmidt lemming? (I always thought that was a process rather than a lemma.)

(no subject)

Date: 2003-08-29 05:23 am (UTC)
From: [identity profile] keirf.livejournal.com
My mistake - I was thinking of the Steinitz exchange lemming; so I should have said "What jumps off cliffs and states that if we have a spanning set of vectors S = {s1 ... sm} and set of linearly independent vectors V = {v1 ... vn}, then n<=m and it is possible to replace n elements of the set S with the elements of V such that S still spans." It's not so snappy though.

(no subject)

Date: 2003-08-29 05:59 am (UTC)
From: [identity profile] imc.livejournal.com
Ah.

(I never was very good at algebra anyway.)

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