Why "geometric"?

From: George Cox (george_coxanti_at_spambtinternet.com.invalid)
Date: 10/31/04


Date: Sun, 31 Oct 2004 22:36:54 +0000 (UTC)

A first order formula is called "geometric" if it is built up from
atomic formulae using only conjunction, disjunction and existential
quantification. But why "geometric"?

Tia
GC