Metamath Proof Explorer


Theorem predasetexOLD

Description: Obsolete form of predexg as of 27-Oct-2024. (Contributed by Scott Fenton, 8-Feb-2011) (Proof modification is discouraged.) (New usage is discouraged.)

Ref Expression
Hypothesis predasetexOLD.1 𝐴 ∈ V
Assertion predasetexOLD Pred ( 𝑅 , 𝐴 , 𝑋 ) ∈ V

Proof

Step Hyp Ref Expression
1 predasetexOLD.1 𝐴 ∈ V
2 predexg ( 𝐴 ∈ V → Pred ( 𝑅 , 𝐴 , 𝑋 ) ∈ V )
3 1 2 ax-mp Pred ( 𝑅 , 𝐴 , 𝑋 ) ∈ V