👉 Chair math is a method of proving mathematical theorems by constructing a geometric figure, known as a "chair," whose properties directly imply the theorem's truth. This approach, rooted in algebraic geometry, transforms abstract algebraic statements into geometric ones, allowing for visual and intuitive proofs. By defining a "chair" with specific constraints (e.g., points, lines, and planes) and leveraging properties like duality or symmetry, mathematicians can derive conclusions about algebraic varieties through geometric transformations and invariants. For example, proving the fundamental theorem of projective geometry involves constructing a "chair" where dual points and lines satisfy analogous conditions, revealing the theorem's validity without relying solely on algebraic manipulations. This method bridges algebra and geometry, offering clarity and insight into complex relationships by translating them into tangible geometric structures.