"AI is a mathematical and logical system. TPMN is Algebraic Logical Language, ALL, to communicate with AI" For engineering work, I thought AI needs engineering language. Not for understanding, but for parsing. I needed a language that an AI agent could parse unambiguously, that a human could read without a manual, and that survived context compaction intact. That language is TPMN — an Algebraic Logical Language (ALL). TPMN stands for four sources: T LA+ (temporal logic for concurrent systems), P anini (the ancient Sanskrit grammarian who solved semantic disambiguation), M athematical notation (for formal constraints), N atural language (for the subjective meaning that symbols cannot carry alone). Each source contributes something specific. Together, they form ALL — the language for specifying AI skills. If you have read the introduction, you know the F: A → B | P pattern. This post explains why algebraic notation is necessary, what each layer contributes, and how the complete language works.…