TEBAC BSD-IV Split: Raw Height Comparison and Néron-Symbol Calibration

This upload should be cited as: : Raw Height Comparison and Neron-Symbol Calibration. \ It follows the split titled: : Actual Coefficient Calculus for the Primitive Spectral Extractor. \ Current status: The Mordell--Weil bridge front is imported as closed for the source-complete actual extractor: M^=0. \ The remaining height front is the raw comparison identity^₄, =BE^, *\, , \, _. \ The manuscript proves the conditional implication local Neron-symbol calibrationH^=0_ (E) = (E). \ Together with the already verified residuesD^=EB^=ET^=0 the source-complete Mordell--Weil closureM^=0, yields^₁ₒ₃₈ₕ (E) = (0, 0, 0, 0, 0) the stated local Neron-symbol calibration hypothesis. This file should be read as a height-front reduction and calibration manuscript. It does not claim to prove the full Birch--Swinnerton--Dyer conjecture, and it does not close BSD-IV by a normalization convention. Absolute raw BSD-IV height closure still requires proving the local calibration identity from the actual raw height construction.