Duality principle

• Dual (disambiguation)
• Duality (disambiguation)
• Duality (mathematics)
• Duality (order theory)
• Duality (projective geometry)
• Duality principle (Boolean algebra)
• Duality principle (optimization theory)
• Duality principle for sets
• Lagrange duality
• List of dualities
• Wave–particle duality
• large sieve