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math.LO2015
A Mid Version of Hamkins' Maximality Principle
Rahman Mohammadpour
We present new, streamlined proofs of certain maximality principles studied by Hamkins and Woodin. Moreover, we formulate an intermediate maximality principle, which is shown here…
math.LO2015
Cardinal collapsing and product forcing
Mohammad Golshani, Rahman Mohammadpour
Suppose is a singular strong limit cardinal of countable cofinality and let be an incrasing sequence of regular cardinals cofinal in . We show th…