↩ 🔵 🔵 🔵 ❪✺₀❫ Portals ○ Logic 𓆩⚪𓆪 ❪✺❫ Boolean Concepts ○ ❪✺₁❫ Logical Classes ○ ❪✺₂❫ Logical Domains ○ ❪✺₄❫ Logical Sets ○ ❪✺_❫ Logical Subs ○ Absorption ○ᴸᴼᴳᴵꟲ Completeness ○ᴸᴼᴳᴵꟲ Simplification ○ᴸᴼᴳᴵꟲ