The Logitext interactive tutorial teaches the sequent calculus through a simple set of inference rules.
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OEC vs Histography
How do OEC and Histography compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | OEC | Histography |
|---|---|---|
| What it is | OEC provides interactive visualizations that help users examine global trade data. | Histography displays historical events from Wikipedia on an interactive timeline. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
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