Abstract
Abstract
This paper presents a definitive algebraic proof of Fermat’s Last Theorem strictly within a one-dimensional linear space where the components do not form a geometric triangle. When bases are restricted to a flat line, the system is governed by the perimeter constraint a + b = c. By applying Taha’s Coefficient Fact 1 (TCF1), the higher-power expression \(a^n + b^n\) is factored into lower-power base segments and their corresponding exponential scaling multipliers. Because individual components grow at a strictly slower rate than the unified target threshold (\(a^{n-1} < c^{n-1}\) and \(b^{n-1} < c^{n-1}\)), strict inequality bounds are established. Substituting the linear baseline directly into the bounding function mathematically demonstrates that \(a^n + b^n < c^n\) for all exponents n > 2. This structural divergence proves that power scales are permanently blocked from reaching equality on a flat line.



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