## Abstract Grzegorczyk's modal logic (Grz) corresponds to the class of upwards wellβfounded partially ordered Kripke frames, however all known proofs of this fact utilize some form of the Axiom of Choice; G. Boolos asked in [1], whether it is provable in plain ZF. We answer his question negatively
β¦ LIBER β¦
A note on the logic of design
β Scribed by William Fawcett
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 407 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0142-694X
No coin nor oath required. For personal study only.
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