Random Graph Orders Do Not Satisfy a 0-1 Law

The random graph order Pn p is defined by taking a random graph Gn p on vertex set [n], interpreting an edge between vertices i and j, with i <j in [n], as a relation i <j, and taking the transitive closure. We present a first—order property 𝓁 of Pn p such that the limiting probability of 𝓁. is bounded away from both 0 and 1 as n → ∞, whenever pn is bounded away from 0 and p is bounded away from 1. © 1995 John Wiley & Sons, Inc.