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References to 'chain condition'
1. composition preserves chain condition by Henry
2. forcing by ratboy
3. FS iterated forcing preserves chain condition by Henry
4. height of an element in a poset by CWoo
5. index of set theory by rspuzio
6. Levy collapse by ratboy
7. Martin's axiom by Henry
8. Martin's axiom and the continuum hypothesis by Henry
9. Martin's axiom is consistent by mathcam
10. partial order with chain condition does not collapse cardinals by mathcam