Facer and Back-Turner across a Distance D18-01

Projection

Correponding Non-correspondence D18-02

Differences In the Direction of Identical Decision

Corresponding Non-Correspondence (up) | Corresponding Non-Correspondent (down)

The Inverted Person from the Invertion

Self-Portrait Manifested by Two-dimensional Space and Folding Space

10-centimeter Line Manifested by Two-dimensional Space and Folding Space

Square Manifested by Two-dimensional Space and Folding Space