### Truth as Value and Duty

#### Posted by David Corfield

Motivation for the Café and *n*Lab:

Mathematical wisdom, if not forgotten, lives as an invariant of all its (re)presentations in a permanently self–renewing discourse.

This is from Yuri Manin’s Truth as value and duty: lessons of mathematics.

Posted at January 12, 2009 11:24 AM UTC
## Brain Hemisphere Relativity; Re: Truth as Value and Duty

I enjoyed Yuri Manin’s paper, which deeply seemed aware of both Truth and Beauty. It appealed both to my mathematical and poetic experience.

However, on re-reading, I wondered about the apparent opposition (not quite contradiction) between two sentiments:

(1) “Mathematical truth is not revealed, and its acceptance is not imposed by any authority…. it is not a democratic value.”

(2) “the basic ‘left–brain’ intuition of sets, composed of distinguishable elements, is giving way to a new, more ‘right brain’ basic intuition dealing with space–like and continuous primary images, both deformable and deforming.”

The skeptic may wonder why – if mathematical truth decidedly not ascertained by acceptance ‘in the competition of the market’ – it matters to the establishment (not revelation) of Truth, that a community of ‘left–brain’ Bourbakian practitioners is being displaced by a community of ‘right brain’ Category and n-Category practioners?