Description: The class of simple graphs is a proper class (and therefore, because of prcssprc , the classes of multigraphs, pseudographs and hypergraphs are proper classes, too). (Contributed by AV, 27-Dec-2020)
Ref | Expression | ||
---|---|---|---|
Assertion | usgrprc | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid | |
|
2 | 1 | griedg0ssusgr | |
3 | 1 | griedg0prc | |
4 | prcssprc | |
|
5 | 2 3 4 | mp2an | |