Prpositional logic - how to eliminate "forall"
From: Konrad Den Ende (tmp1_at_viltersten.com)
Date: 11/18/04
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Date: Thu, 18 Nov 2004 18:31:55 +0100
I have this slight issue here. I have following:
(forall x) P(x)
and i say that using universal elimination i can get to
P(x)
while the girlfriend argues that it isn't possible.
Who's right?
The actual rule states that the conclusion shoud be
P(t)
where t is free for x. We have hard time understanding
the condition, possibly due to the "not being native
speakers of english", possibly due to the "hardness of
matter". Any suggestions?
--
Kindly
Konrad
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