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| Mirrors > Home > MPE Home > Th. List > Mathboxes > cstrkg2d | Structured version Visualization version GIF version | ||
| Description: Extends class notation with the class of geometries fulfilling the planarity axioms. | 
| Ref | Expression | 
|---|---|
| cstrkg2d | class TarskiG2D | 
| Colors of variables: wff setvar class | 
| Copyright terms: Public domain | W3C validator |