Summary
- more precise markup; tuned signature;
- automatically resolve dependencies from document models and file-system;
- clarified;
- tuned;
- ignore message;
- clarified node_visible;
- tuned signature;
- proper state update;
- proper log;
- tuned;
- tuned signature;
- tuned signature;
- proper import_name;
- more elementary rules about div / mod on int
- complete set of cases rules for integers known to be (non-)positive/negative; legacy theorem branding
- more facts on sgn, abs
- dropped slightly outdated comment