# A General Theory of Reactivity
## Concepts
### Singular and temporal
### Plural and temporal
### Singular and temporal
#### Plural and temporal
##### Singular and temporal
#### Plural and temporal
### Singular and temporal
### Plural and temporal
## Primitives
### Iterators
graph LR
A[Hard edge] -->|Link text| B(Round edge)
B --> C{Decision}
C -->|One| D[Result one]
C -->|Two| E[Result two]
类似如下示例: