IndisputableMonolith.Modal.ModalGeometry
The ModalGeometry module defines the modal distance on possibility configurations as d(x,y) = J_transition(x,y)/τ₀. Modal researchers cite it when equipping possibility space with a metric for transition costs. The module assembles this definition plus its immediate metric axioms from the imported Possibility and Actualization modules.
claimThe modal distance on configurations is defined by $d(x,y) = J_{transition}(x,y)/τ_0$, obeying $d(x,x)=0$, $d(x,y)=d(y,x)$, and the triangle inequality.
background
This module belongs to the Modal domain and imports Possibility together with Actualization. It introduces the possibility metric that quantifies separation between configurations via the normalized J-transition cost. The DOC_COMMENT states the explicit formula and lists the three metric axioms that follow from the upstream modules.
proof idea
this is a definition module, no proofs
why it matters in Recognition Science
The module supplies the metric geometry required by the parent IndisputableMonolith.Modal module. It thereby enables the sibling declarations for balls, curvature, and modal period that appear in the same file.
scope and limits
- Does not define the J-transition function itself.
- Does not prove the triangle inequality from first principles.
- Does not treat non-Euclidean or curved modal geometries beyond the listed axioms.
- Does not address time-dependent or dynamical extensions of the distance.
used by (1)
depends on (2)
declarations in this module (28)
-
def
modal_distance -
lemma
modal_distance_nonneg -
lemma
modal_distance_self -
lemma
modal_distance_symm -
def
PossibilityBall -
lemma
identity_in_ball -
theorem
possibility_space_connected -
def
possibility_curvature -
lemma
curvature_at_identity -
lemma
curvature_pos -
def
modal_period -
def
modal_nyquist_limit -
def
modally_equivalent -
lemma
modally_equivalent_refl -
lemma
modally_equivalent_symm -
theorem
modal_nyquist -
def
interference_amplitude -
def
constructive_interference -
def
destructive_interference -
lemma
constructive_at_zero -
structure
ModalManifold -
def
standard_modal_manifold -
theorem
modal_completeness -
def
ImpossibleRegion -
theorem
impossible_infinite_cost -
def
PossibilityBoundary -
theorem
boundary_unreachable -
def
modal_geometry_status