Common Symbols for Copying

degrees °
em dash —
en dash –
therefore ∴
because ∵
infinity ∞
bullet •
times ×
element of ∈
equilibrium ⇌
alpha α
beta β
gamma γ
Delta Δ
theta θ
lambda λ
mu μ
pi π
Sigma Σ
sigma σ
omega Ω
plus/minus ±
sqrt √
for all ∀
exists ∃
negate ¬
triple bar ≡
approx ≈
N ℕ
Q ℚ
R ℝ
Z ℤ
square ■

egyptian hieroglyphs