Description: A simple graph is an undirected pseudograph. (Contributed by Alexander van der Vekens, 20-Aug-2017) (Revised by AV, 15-Oct-2020)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | usgrupgr | ⊢ ( 𝐺 ∈ USGraph → 𝐺 ∈ UPGraph ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | usgruspgr | ⊢ ( 𝐺 ∈ USGraph → 𝐺 ∈ USPGraph ) | |
| 2 | uspgrupgr | ⊢ ( 𝐺 ∈ USPGraph → 𝐺 ∈ UPGraph ) | |
| 3 | 1 2 | syl | ⊢ ( 𝐺 ∈ USGraph → 𝐺 ∈ UPGraph ) |