Formulas
- Ihara zeta function
- Ikeda map
- Image (category theory)
- Image (mathematics)
- Image functors for sheaves
- Immersion (mathematics)
- Implicit curve
- Implicit surface
- Impossible world
- Impulse (physics)
- List of statements independent of ZFC
- List of topologies
- List of transitive finite linear groups
- List of zeta functions
- Littlewood's Tauberian theorem