Prove literal Dedekind formula declaration

[DomTheDeveloper]

Result

The literal unrestricted declaration asks for a function-valued answer to

M = answer

The answer can be chosen to be M itself, reducing the theorem to reflexivity:

theorem M_eq_literal_solution : M = M := rfl

Verification

Focused audit run 30205431124 passed every gate:

• source scan rejected sorry, admit, native_decide, unsafe declarations, custom axioms, and compiler-trust escapes;
• the exact module compiled under pinned Lean 4.27;
• the theorem axiom audit passed with only propext, Classical.choice, and Quot.sound;
• no sorryAx dependency appears.

Qualification

This exposes a specification defect. It does not provide an efficient closed formula and does not compute the unknown value M 10.

The PR remains draft while the result is packaged as a canonical correction rather than presented as a solution of the intended computational problem.

[github-actions]

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