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"Collapsing $$\omega _2$$ ω 2 with semi-proper forcing."
Stevo Todorcevic (2018)
- Stevo Todorcevic
:
Collapsing $$\omega _2$$ ω 2 with semi-proper forcing. Arch. Math. Log. 57(1-2): 185-194 (2018)

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