How statement and proof provenance work
The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.
- Literature-sourced: the exact statement appears in a cited source; only wording and notation differ.
- AI-adapted: a semantically identical restatement of literature-sourced material, modulo indexing, notation, and boundary cases adopted by the library.
- AI-generated: a genuinely novel statement formulated by AI, with no source for the claim itself.
These labels describe origin, not correctness: citations and verification chips remain separate evidence.
Trefoil, mirror, and unknot bracket calculations
Example
Assume the Axiom of Choice. Let be an indeterminate. Let be the positive trefoil diagram, defined as the closure of the two-strand braid , where is the anticlockwise geometric half twist with the left label passing below and the right label above the midpoint, and both strands are oriented in the braid direction. Let be its mirror image, and let be the crossing-free one-component unknot diagram. Fix a unit viewing normal and orient the projection plane so is positive exactly when is positive in the oriented ambient -space. At each crossing use the local source chart whose over-strand runs southwest to northeast; the A-smoothing joins the left endpoints and right endpoints with weight , and the B-smoothing joins the top endpoints and bottom endpoints with weight . Transport these labels by orientation-preserving changes of local coordinates. For a diagram , let be its finite crossing set. Each state is a map ; let and count the smoothing types and count its circles. Define and , where writhe is the sum of determinant crossing signs, computed as after fixing a unit viewing normal and using the induced orientation of above. With and Jones polynomial , the values are
Example references
Verification
Given: AC and the closure with its three positive crossings.
[F1] The algorithm enumerates every smoothing state once and adds , with (Kauffman bracket state sum).
[F2] In the declared chart, a positive braid crossing has operator , with the two through strands and the top-cap, bottom-cup diagram (Hecke–bracket trace dictionary and local descent).
[F3] The Temperley–Lieb closure trace assigns to a basis diagram, where counts circles after joining corresponding top and bottom endpoints. The closure of has two circles, and the closure of has one (Unnormalized diagram closure and partial trace).
[F4] Stacking satisfies (The elementary diagram generators satisfy the local Temperley–Lieb relations).
[F5] Each positive Artin half twist has crossing sign ; mirroring swaps over and under and negates the determinant sign (Oriented crossing signs, diagram writhe, and blackboard framing, The elementary geometric half twist, its support disc, and its opposite).
[F6] The normalized bracket of every nonempty oriented link equals the library Jones specialization after (The bracket state sum matches the library Jones specialization).
[F7] The closure of the identity one-strand braid is the crossing-free one-component unknot (The closure of a geometric braid).
For a state with B-smoothings, the smoothed braid is the closure of a stack with copies of and identity layers, because each A-smoothing is by [F2]. If , the identity closure has two circles by [F3]. If , the first connects the two closing arcs into one circle; each additional contributes one removed loop by in [F4]. Thus the state has circles. There are states with B-smoothings, each with weight . The complete state table is Each term follows from [F1] and the circle counts in [F3–F4].
Substituting into the table gives The braid has three positive crossings, so [F5] gives . Therefore By [F6], this is the library Jones value.
Mirroring keeps the projection and swaps over and under. To return the over-strand to the source chart's southwest-to-northeast position, rotate the local chart through a positive quarter-turn; this exchanges the top/bottom and left/right pairings. Thus the A- and B-smoothings interchange, so state-by-state . The determinant sign changes sign when the over and under tangent vectors are exchanged, hence by [F5]. It follows directly that , and [F6] identifies this with . By [F7], the crossing-free one-circle diagram has one state with one circle and writhe , so its raw bracket is and [F6] gives .
Depends on
- Kauffman bracket smoothing and loop value
- Kauffman bracket state sum
- Temperley–Lieb planar diagram data and endomorphism modules
- The elementary diagram generators satisfy the local Temperley–Lieb relations
- Unnormalized diagram closure and partial trace
- Hecke–bracket trace dictionary and local descent
- Oriented crossing signs, diagram writhe, and blackboard framing
- The elementary geometric half twist, its support disc, and its opposite
- The closure of a geometric braid
- The bracket state sum matches the library Jones specialization
- The Axiom of Choice
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
46 results within two dependency steps of this one, each drawn at its shortest distance from it. An arrow runs from a result to what uses it, so the chart reads left to right and ends at this result, which carries a heavier outline. Every node is a link to that result. Click elsewhere on the chart to enlarge it.
Sources
- Louis H. Kauffman, An Invariant of Regular Isotopy, Transactions of the AMS 318(2) (1990), §§III and VI (standard reference, not scraped)
- Louis H. Kauffman, Combinatorial Knot Theory and the Jones Polynomial, arXiv:2204.12104v2, §2 (standard reference, not scraped)
- Justin Roberts, Knots Knotes, §§4.1–4.4, printed pp. 21–26 (standard reference, not scraped)
- François Funar, A Crash Course in Quantum Invariants of Knots and 3-Manifolds, Chapter 3, §§1.1–2.3 (standard reference, not scraped)