↩ 🔵 🔵 🔵 ❪✺₄❫ Quantum Sets ○ ❪✺_❫ Quantum Subs ○ ❪✺_ₛₛ❫ Mechanical Subsets ○ ❪◑❫ Bosons ○ ❪◑❫ Elementary Particles ○ ❪◑❫ Fermions ○ ❪◑❫ Gauge Bosons ○ ❪◑❫ Leptons ○