• Jul 31, 2025 errata kate kearns 2011 semantics 2 e Formal Notation of Modality (Section 6.1) Original Issue: A misprint occurred in the notation for the necessity operator □ (box). The formula for modal accessibility was written as: > w ⊨ □φ iff ∀w' (W(w, w') → w' ⊨ φ) but the set W(w, w') BY Tanya Beier
• Jun 13, 2026 errata for mean reversion trading systems ng, testing, and implementing mean reversion strategies. These errors can significantly impact the performance and profitability of trading systems, leading to misguided conclusions and financial losses. Understanding these errata is crucial BY Fred Sawayn
