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10, 11], "\u2080": [3, 8], "\u2081": 6, "\u2090": 7, "\u2097": 8, "\u2102": [1, 5, 7, 8, 10], "\u2115": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11], "\u211a": [1, 4, 7, 8, 9], "\u211d": [1, 2, 3, 5, 6, 7, 8, 9, 10, 11], "\u2124": [1, 4, 5, 6, 7, 8], "\u2124\u02e3": 7, "\ud835\udcdd": [9, 10, 11], "\ud835\udcdf": 9, "\ud835\udce4": 9, "\ud835\udd42": 10, "\ud835\udd5c": [10, 11], "\ud835\udfd9": 6}, "titles": ["<span class=\"section-number\">1. </span>Introduction", "<span class=\"section-number\">2. </span>Basics", "<span class=\"section-number\">3. </span>Logic", "<span class=\"section-number\">4. </span>Sets and Functions", "<span class=\"section-number\">5. </span>Elementary Number Theory", "<span class=\"section-number\">6. </span>Structures", "<span class=\"section-number\">7. </span>Hierarchies", "<span class=\"section-number\">8. </span>Groups and Rings", "<span class=\"section-number\">9. </span>Linear algebra", "<span class=\"section-number\">10. </span>Topology", "<span 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