pith. sign in
module module high

IndisputableMonolith.Astrophysics.PlanetaryFormationFromJCost

show as:
view Lean formalization →

This module constructs the stable orbital radius function on the phi-ladder for planetary formation models in Recognition Science. Astrophysicists working with discrete J-cost minima would cite the r_orbit construction and its ratio lemmas. The module proceeds by recursive definitions at zero and successor rungs together with monotonicity and band lemmas.

claimThe function $r(k,r_0)$ denotes the stable orbital radius at rung $k$ for reference scale $r_0$, satisfying $r(0,r_0)=r_0$ and adjacent ratios lying in the band around $phi^2$ with strict monotonicity in $k$.

background

The module sits in the astrophysics domain and imports the RS time quantum $tau_0=1$ tick from Constants. It defines the orbital radius function together with supporting results on positivity, base case, successor step, strict increase, and closed relations such as the two-rung gap equaling $phi^2$. The local setting uses the J-cost $J(x)=(x+x^{-1})/2-1$ and the self-similar phi fixed point from the upstream forcing chain to select discrete stable radii.

proof idea

This is a definition module, no proofs. It supplies the base case r_orbit_zero, the successor clause r_orbit_succ, and then derives positivity, strict monotonicity, adjacent-ratio band membership, and the exact two-rung gap identity from the phi-ladder arithmetic.

why it matters in Recognition Science

The module supplies the discrete orbital ladder that realizes J-cost minimization for planetary formation, feeding any downstream model that requires stable radii in RS-native units. It directly instantiates the phi fixed point (T6) and the eight-tick octave structure (T7) at the astrophysical scale.

scope and limits

depends on (1)

Lean names referenced from this declaration's body.

declarations in this module (15)