{...}⟷ℕ

#bijection #one-to-one correspondence #natural numbers #set theory #countable set #mathematical definition

⚖️:y∝xᵏ

#scale invariance #power law relationship #mathematical definition #physics scaling #statistical mechanics #universality

{𝑥}→{𝑓(𝑥)}

#set notation #function notation #input set #output set #mathematical definition

✨10³⁰⁰³✨

#millinillion #ten to the power of 3003 #10^3003 #large number notation #specific large number #mathematical definition

➗1️⃣0️⃣0️⃣0️⃣`or¹/₁₀₀₀

#promile #permille #per mille #per thousand #one-thousandth #mathematical definition

📤➗📥

#output input ratio #system gain #mathematical definition #system characterization