Abstract
In this paper, we consider certain cardinals in ZF #set theory without AC,
the Axiom of Choice#. In ZFC #set theory with AC#, given any cardinals C
and D; either C # D or D # C: However, in ZF this is no longer so. For a
given in#nite set A consider seq
1 1
#A#, the set of all sequences of A without
repetition. We compare seq
1 1
#A# , the cardinality of this set, to P#A# , the
cardinality of the power set of A. What is provable about these two cardinals
in ZF? The main result of this...
Users
Please
log in to take part in the discussion (add own reviews or comments).