Form equivalence class Howard-Rubin Number: 1

Statement:

Form 49 \(+\)Form 51.

Howard-Rubin number: 1 J

Citations (articles): Morris [1969] Choice and cofinal well-ordered subsets

Connections (notes): Note [121] The order extension principle (Form 49) together with 'Every linear ordering has a cofinal well ordered subset' (Form 51) implies AC (Form 1).

References (books):

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