Re: R.J. Lipton and K.W. Regan • A Most Perplexing Mystery
The inverse relationship between symmetry and diversity — that we see for example in the lattice-inverting map of a Galois correspondence — is a variation on an old theme in logic called the “inverse proportionality of comprehension and extension”.
C.S. Peirce, in his probings of the “laws of information”, found this principle to be a special case of a more general formula, saying that the reciprocal relation holds only when the quantity of information is constant.
Readings
- C.S. Peirce • Upon Logical Comprehension and Extension
- My Notes • Information = Comprehension × Extension