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 ) |