--- tags: [sign, symbol, numerical, consistent, system, counting] category: Math version: "1.11" --- <svg> <line x1="6" y1="5" x2="6" y2="19" /> <line x1="10" y1="5" x2="10" y2="19" /> <line x1="14" y1="5" x2="14" y2="19" /> <line x1="18" y1="5" x2="18" y2="19" /> </svg>