def
definition
def or abbrev
prevClosure
show as:
view Lean formalization →
formal statement (Lean)
126def prevClosure (Z : ℕ) : ℕ :=
proof body
Definition body.
127 if Z ≤ 2 then 0
128 else if Z ≤ 10 then 2
129 else if Z ≤ 18 then 10
130 else if Z ≤ 36 then 18
131 else if Z ≤ 54 then 36
132 else if Z ≤ 86 then 54
133 else 86
134
135/-- Next noble gas closure for element Z. -/
used by (20)
-
li_larger_than_f -
na_larger_than_cl -
normalizedRadius -
carbon_intermediate -
cesium_low_en -
chlorine_gt_sodium -
en_increases_across_period -
fluorine_gt_b -
fluorine_gt_be -
fluorine_gt_c -
fluorine_gt_li -
fluorine_gt_n -
fluorine_gt_o -
fluorine_ranking -
nitrogen_ranking -
oxygen_ranking -
ionization_monotone_within_period -
alkali_low_ionization -
periodLength -
valenceElectrons