Theorem bnj1211 30122

Description: First-order logic and set theory. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) (New usage is discouraged.)

Hypothesis

Ref	Expression
bnj1211.1	⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝜓)

Assertion

Ref	Expression
bnj1211	⊢ (𝜑 → ∀𝑥(𝑥 ∈ 𝐴 → 𝜓))

Proof of Theorem bnj1211

Step	Hyp	Ref	Expression
1		bnj1211.1	. 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝜓)
2		df-ral 2901	. 2 ⊢ (∀𝑥 ∈ 𝐴 𝜓 ↔ ∀𝑥(𝑥 ∈ 𝐴 → 𝜓))
3	1, 2	sylib 207	1 ⊢ (𝜑 → ∀𝑥(𝑥 ∈ 𝐴 → 𝜓))

Syntax hints:   → wi 4  ∀wal 1473   ∈ wcel 1977  ∀wral 2896

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 196  df-ral 2901

This theorem is referenced by:  bnj1533  30176  bnj1204  30334  bnj1523  30393