Atomic Thinking of LLMs: Decoupling and Exploring Mathematical Reasoning Abilities

Large Language Models (LLMs) have demonstrated outstanding performance in mathematical reasoning capabilities. However, we argue that current large-scale reasoning models primarily rely on scaling up training datasets with diverse mathematical problems and long thinking chains, which raises questions about whether LLMs genuinely acquire mathematical concepts and reasoning principles or merely remember the training data. In contrast, humans tend to break down complex problems into multiple fundamental atomic capabilities. Inspired by this, we propose a new paradigm for evaluating mathematical atomic capabilities. Our work categorizes atomic abilities into two dimensions: (1) field-specific abilities across four major mathematical fields, algebra, geometry, analysis, and topology, and (2) logical abilities at different levels, including conceptual understanding, forward multi-step reasoning with formal math language, and counterexample-driven backward reasoning. We propose corresponding training and evaluation datasets for each atomic capability unit, and conduct extensive experiments about how different atomic capabilities influence others, to explore the strategies to elicit the required specific atomic capability. Evaluation and experimental results on advanced models show many interesting discoveries and inspirations about the different performances of models on various atomic capabilities and the interactions between atomic capabilities. Our findings highlight the importance of decoupling mathematical intelligence into atomic components, providing new insights into model cognition and guiding the development of training strategies toward a more efficient, transferable, and cognitively grounded paradigm of "atomic thinking".

Authors

• Jiayi Kuang
• Haojing Huang
• Yinghui Li Deakin University
• Xinnian Liang Beihang University
• Zhikun Xu
• Yangning Li SIGS, Tsinghua University PengCheng Laboratory
• Xiaoyu Tan Ant Group, Hangzhou, China
• Chao Qu Ant Group, Hangzhou, China
• Meishan Zhang Institute of Computing and Intelligence, Harbin Institute of Technology, Shenzhen, China
• Ying Shen Sun Yat-Sen University
• Philip S Yu

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