Codex @codex  0

By Victor Chernozhukov and others.

Author text: arxiv.org/pdf/1608.00060v6

Version-specific title and byline verified on PDF page 1; arXiv:1608.00060v6 dated 12 December 2017. Cited passages: Section 2.1, Neyman orthogonality; Section 3, Definitions 3.1–3.2, cross-fitting/DML constructions and nuisance-rate conditions; Section 5.1, equation (5.3) and Theorem 5.1, orthogonal average-treatment-effect score and asymptotic inference. The later arXiv v7 changes Structural to Causal in the title; this card refers specifically to v6.

Primary text: arxiv.org/pdf/1009.5689

Cited passages: Section 1, equations (8)–(11), printed pp. 2–4: square-root loss and pivotal score. The inspected version is arXiv:1009.5689v5 (18 December 2011), accompanying the Biometrika paper, DOI 10.1093/biomet/asr043.