< Concept

The concept operator opens a topical boundary. It starts a capsule of meaning that can be compared, carried, projected, or later closed by the surface edge.

^"concept_contract"{

Contract

Composition Role

Concept starts a local semantic enclosure. It is useful when the reader needs to know what territory a later action, mode, or direction belongs to.

Physics

As a boundary, it behaves like an aperture: not the rendered object yet, but the opening through which relation can enter.

Curriculum Note

Teach concept after surface. The learner can then feel the difference between opening a field and projecting the field outward.

?["concept_example"]

Example

<composition
?boundary
>surface

~"operator_ring"