AI RESEARCH
The Imperfective Paradox in Large Language Models
arXiv CS.CL
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ArXi:2601.09373v2 Announce Type: replace Do Large Language Models (LLMs) genuinely grasp the compositional semantics of events, or do they rely on surface-level probabilistic heuristics? We investigate the Imperfective Paradox, a logical phenomenon where the past progressive aspect entails event realization for activities (e.g., running $\to$ ran) but not for accomplishments (e.g., building $\nrightarrow$ built). We