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Sunburst

The catalog's single-parent hierarchy rendered as an interactive, zoomable sunburst — the same primary-parent reduction the By Hierarchy view uses, with foundational abstractions ringing the centre and their subtrees fanning outward. Every labeled wedge carries a P or D marker. Prime abstractions are always present; the control swaps between independently generated prime-only and mixed projections, so removing the domain-specific layer never leaves holes. To keep the larger structures legible, foundational families of 4 abstractions or fewer are pulled out of the wheel into Small families below, and nodes not yet placed in the active projection are listed under Unplaced abstractions.

95 foundational families in the wheel · 2415 abstractions shown · 98 small families · 0 unplaced

Click a wedge to dive into its subtree; click the centre to zoom back out. From keyboard focus, use the arrow keys to move among visible wedges and Enter to activate one. A leaf opens its typed page in a new tab; for any other abstraction, the "open the page" link above the chart does the same. See the DAG type system for what the parent–child relationships mean. The Downloads page offers both the canonical graph streams and the node-oriented convenience export.

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