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2011-01-03Numbers: some improvements in proofsletouzey
2010-11-18NZSqrt: we define sqrt_up, a square root that rounds up instead of down as sqrtletouzey
2010-11-18NZLog: we define log2_up, a base-2 logarithm that rounds up instead of down a...letouzey
2010-11-02NZLog : since spec is complete, no need for morphism axiom log2_wdletouzey
2010-11-02Numbers: misc improvementsletouzey
2010-11-02Numbers : log2. Abstraction, properties and implementations.letouzey