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Reversed relation
Definition
| $ R $ |
| $ \forall_R c\ \exists a,b\ (c=\langle a,b\rangle) $ |
| $ \langle x,y \rangle \in R^\smile $ |
|---|
| $ \langle y,x \rangle \in R $ |
|---|
Ramifications
Reference
Mizar files: RELAT_1
Context
Set constructor
Parents
