Description: Cosets of converse sets are elements of the relations class. (Contributed by Peter Mazsa, 31-Aug-2021)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | cosscnvelrels | ⊢ ( 𝐴 ∈ 𝑉 → ≀ ◡ 𝐴 ∈ Rels ) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | cnvelrels | ⊢ ( 𝐴 ∈ 𝑉 → ◡ 𝐴 ∈ Rels ) | |
| 2 | cosselrels | ⊢ ( ◡ 𝐴 ∈ Rels → ≀ ◡ 𝐴 ∈ Rels ) | |
| 3 | 1 2 | syl | ⊢ ( 𝐴 ∈ 𝑉 → ≀ ◡ 𝐴 ∈ Rels ) |