History and Philosophy of Logic. 1988;9(1):13-34. doi: 10.1080/01445348808837122 N/A0.52025
Beltrami's model and the independence of the parallel postulate
DOI: 10.1080/01445348808837122
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History and Philosophy of Logic. 1988;9(1):13-34. doi: 10.1080/01445348808837122 N/A0.52025
DOI: 10.1080/01445348808837122
摘要 查看摘要