Metamath Proof Explorer


Theorem structex

Description: A structure is a set. (Contributed by AV, 10-Nov-2021)

Ref Expression
Assertion structex ( 𝐺 Struct 𝑋𝐺 ∈ V )

Proof

Step Hyp Ref Expression
1 brstruct Rel Struct
2 1 brrelex1i ( 𝐺 Struct 𝑋𝐺 ∈ V )