IndisputableMonolith.Gravity.PropagationSpeed
This module normalizes the speed of light to unity in RS-native units, defining c_RS as one ledger cell per tick. Gravity researchers cite it when equating electromagnetic and gravitational propagation speeds under the Recognition Composition Law. The module supplies the base definitions and one-line equalities that later siblings invoke to force c_grav_RS = c_RS.
claim$c_{RS} = 1$ (ledger cells per tick), with $c_{grav,RS}$ shown equal to the same value via the propagation equality chain.
background
The module sits inside the Gravity domain and imports only Mathlib plus IndisputableMonolith.Constants. The upstream Constants module supplies the single time quantum: τ₀ = 1 tick. In this setting the Recognition Science forcing chain already fixes c = 1 as the ledger-cell speed; the present module simply records that normalization for gravitational propagation arguments.
proof idea
This is a definition module, no proofs. It introduces the constant c_RS together with the auxiliary symbols c_grav_RS, propagation_implies_equal_speed, speed_ratio_unity and propagation_equality_forced that later close the equality c_grav_RS = c_RS.
why it matters in Recognition Science
The module supplies the unit convention required by every downstream gravity result that equates propagation speeds. It directly supports the T5–T8 forcing steps that fix D = 3 and the eight-tick octave, and it is the immediate prerequisite for any claim that gravitational signals travel at the same RS speed as light.
scope and limits
- Does not derive the value of c from the J-functional equation.
- Does not address propagation in non-RS units.
- Does not contain the full propagation theorem; only the unit setting.