def
definition
cert
show as:
view math explainer →
open explainer
Read the cached plain-language explainer.
open lean source
IndisputableMonolith.ArtHistory.FibonacciInComposition on GitHub at line 60.
browse module
All declarations in this module, on Recognition.
explainer page
depends on
formal source
57 division_lt_one : goldenDivision < 1
58 division_ratio : (1 - goldenDivision) / goldenDivision = phi - 1
59
60noncomputable def cert : FibonacciCompositionCert where
61 division_pos := goldenDivision_pos
62 division_lt_one := goldenDivision_lt_one
63 division_ratio := goldenDivision_ratio
64
65theorem cert_inhabited : Nonempty FibonacciCompositionCert := ⟨cert⟩
66
67end
68end FibonacciInComposition
69end ArtHistory
70end IndisputableMonolith