Overview
The Equality Ladder is the Real Science interpretation of Set B: (2, 6, 7, 8, 10, 12, 14, 16, 20).
These are treated as equality-stability anchors because stable isotopes exist with neutron number equal to proton number.
Canonical set
Set B = (2, 6, 7, 8, 10, 12, 14, 16, 20)
Members
2 — Helium
6 — Carbon
7 — Nitrogen
8 — Oxygen
10 — Neon
12 — Magnesium
14 — Silicon
16 — Sulfur
20 — Calcium
Interpretive meaning
Equality membership supplies a shared stability feature, but does not force all elements into the same corridor class.
Carbon, Oxygen, and Silicon are all equality members, but they occupy different roles.