| 1 | See, this is kind of topology in a way. | |
| 2 | Monadic Boolean algebras have an important connection to topology. | |
| 3 | Separation axiom is one of the important studied content in topology. | |
| 4 | At this time the subject of topology was known as analysis situs . | |
| 5 | Combination of the holographic theory and the methodology of topology is holographic topology . |