DQ, no.....
Russell didn't have a hard time with Heidegger. Russell laughed at Heidegger. Russell dismissed Heidegger.
Russell's development of "type theory" in Principia Mathematica (read it?) showed the way to illustrate how Heidegger's metaphsyics (ontology here) was drivel.
I was looking for the name Rudolf Carnap - who in one of his famous articles - in the Logical Syntax of Language for instance - as someone who ridiculed Heidegger for his ontological sophistry. It's actually one of the most humourous pieces ever written, as he attempts to deconstruct Heidegger (the man who tried to be Chief Nazi Philosopher) - sentence by sentence.
Here's a bit of information on Carnap, if you're interested. Many of those listed in this article are my heroes. They weren't just bright men. They were brave men.
http://en.wikipedia.org/wiki/Rudolf_Carnap
Whenever I am in Vienna, I make a pilgrimage to the University of Vienna steps where Moritz Schlick was murdered.
If there happens to be anyone interested in some stories about these guys, I happen to know a few. Just ask (if you're sincere.)
DQ - first - It's Descartes', not Descarte's. Second, do you think you know what his "ontological argument for the existence of God is?" Please don't pretend you do, if you don't.
Glad you think ontological a priori proofs are common. Could you please give us other examples? Or even tell us what "a priori" means? Just wondering.
As for Lyotard - please don't tell us about him. Here's a wiki link which is a much more accurate picture:
http://en.wikipedia.org/wiki/Lyotard