121theorem actuality_is_unique : ∃! x : ℝ, RSActual x :=
proof body
Term-mode proof.
122 necessity_is_unique_minimizer 123 124/-! ## IV. Impossibility = Non-Positive Ratio -/ 125 126/-- **Theorem (Impossibility)**: 127 Something is "impossible" iff it has non-positive ratio. 128 Negative or zero ratios violate the positivity constraint of the recognition ledger. -/
depends on (13)
Lean names referenced from this declaration's body.