∞🦋⃟✴🌔✳️♾ᨖ⚰

#infinity #universe #infinitesimal #countable set #physics #natural number

◯ ☽ ◑ ● ◐ ❨ ◯ ;༊;༊;༊;༊;༊.☘︎ ݁˖.☘︎ ݁˖

#infinity #countable set #cute

1️⃣2️⃣3️⃣...ℕ

#countable set #natural numbers #math #set theory #enumeration #infinite list #counting sequence

|ℕ|=ℵ₀

#cardinality of natural numbers #set theory #aleph null #aleph zero #countable set #infinite set #natural numbers cardinality

{...}⟷ℕ

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