FOM: a query about cardinals

Kanovei kanovei at
Sat Jul 17 16:50:46 EDT 1999

>Date: Sat, 17 Jul 1999 14:59:54 +0100
>From: Robert Black <Robert.Black at>

>(1) Am I right to guess that the claim is not provable in ZFC? 

For the claim to be false it suffices that 
for any k there is >k (say k^+) 
different cardinals between k and 2^k, 
which seems to be easily achievable by forcing. 


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