Description: The value of a class exists (as consequent of anything). (Contributed by Glauco Siliprandi, 23-Oct-2021)
Ref | Expression | ||
---|---|---|---|
Assertion | fvexd | ⊢ ( 𝜑 → ( 𝐹 ‘ 𝐴 ) ∈ V ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvex | ⊢ ( 𝐹 ‘ 𝐴 ) ∈ V | |
2 | 1 | a1i | ⊢ ( 𝜑 → ( 𝐹 ‘ 𝐴 ) ∈ V ) |