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James Hirschorn - Towers of measurable functions
| JAMES HIRSCHORN, University of Toronto, Toronto, Ontario M5S 3G3, Canada |
| Towers of measurable functions |
We give mathematical reformulations of the cardinals 
and
in terms of families of measurable functions, proving that
both of these cardinals are invariant under the addition of one random
real. We also describe the cardinal 
after adding one random
real.
