Theorem 2ralimi 2534

Description: Inference quantifying both antecedent and consequent two times, with strong hypothesis. (Contributed by AV, 3-Dec-2021.)

Hypothesis

Ref	Expression
ralimi.1	⊢ (𝜑 → 𝜓)

Assertion

Ref	Expression
2ralimi	⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜑 → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓)

Proof of Theorem 2ralimi

Step	Hyp	Ref	Expression
1		ralimi.1	. . 3 ⊢ (𝜑 → 𝜓)
2	1	ralimi 2533	. 2 ⊢ (∀𝑦 ∈ 𝐵 𝜑 → ∀𝑦 ∈ 𝐵 𝜓)
3	2	ralimi 2533	1 ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜑 → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓)

Syntax hints:   → wi 4  ∀wral 2448

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1440  ax-gen 1442

This theorem depends on definitions:  df-bi 116  df-ral 2453

This theorem is referenced by:  xmeteq0  13153  xmettri2  13155