HTML 3 math test

α&sp;±∅ = int_0_^n^Γ(x)
⊥ ± ∨
∧ ≤ ≥
≡ ≈ ≠
⊂ ⊆ ⊃
⊇ ∈ ←
→ ↑ ↓
↔ ⇐ ⇒
⇑ ⇓ ⇔
∀ ∃ &inf;
∇ ⟨ ∝
⟩ ⇔ ∅
±