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.
The compact-space WGAN value is differentiable almost everywhere under choice
Statement
Assume the full Axiom of Choice and all hypotheses of the common-neighborhood integrable-envelope branch of the compact-space WGAN theorem. Then its value function is Fréchet differentiable outside a Lebesgue-null subset of .
Statement references
Facts & Assumptions
Given: The full Axiom of Choice, an open with , and the hypotheses of the common-neighborhood integrable-envelope branch of the WGAN theorem.
The Axiom of Choice states that every family of nonempty sets has a choice function. The Axiom of Choice
Under its common-neighborhood integrable-envelope hypothesis, the WGAN value is locally Lipschitz on . Continuity and ideal-critic gradients for compact-space Wasserstein GAN objectives
Assuming full AC, every locally Lipschitz map from an open subset of to is Fréchet differentiable outside a Lebesgue-null subset. Rademacher differentiability in Euclidean space
Proof
By [F1], is a locally Lipschitz real-valued function on the open set .
Under [A1], apply [F2] to on ; it is Fréchet differentiable outside a Lebesgue-null subset of .
Depends on
Used by
Nothing in the library uses this result yet.
Dependency tree · two levels
39 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
- Martin Arjovsky, Soumith Chintala and Léon Bottou, Wasserstein GAN, Theorem 1 and Appendix C, physical PDF pp. 5 and 20–21 (standard reference, not scraped)