Theorem alimdv 1903

Description: Deduction from Theorem 19.20 of [Margaris] p. 90. (Contributed by NM, 3-Apr-1994.)

Hypothesis

Ref	Expression
alimdv.1	⊢ (𝜑 → (𝜓 → 𝜒))

Assertion

Ref	Expression
alimdv	⊢ (𝜑 → (∀𝑥𝜓 → ∀𝑥𝜒))

Distinct variable group:   𝜑,𝑥

Allowed substitution hints:   𝜓(𝑥)   𝜒(𝑥)

Proof of Theorem alimdv

Step	Hyp	Ref	Expression
1		ax-17 1550	. 2 ⊢ (𝜑 → ∀𝑥𝜑)
2		alimdv.1	. 2 ⊢ (𝜑 → (𝜓 → 𝜒))
3	1, 2	alimdh 1491	1 ⊢ (𝜑 → (∀𝑥𝜓 → ∀𝑥𝜒))

Syntax hints:   → wi 4  ∀wal 1371

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-5 1471  ax-gen 1473  ax-17 1550

This theorem is referenced by:  2alimdv  1905  moim  2120  ralimdv2  2578  sstr2  3208  reuss2  3461  ssuni  3886  disjss2  4038  disjss1  4041  disjiun  4054  exmidsssnc  4263  soss  4379  alxfr  4526  ssrel  4781  ssrel2  4783  ssrelrel  4793  iotaval  5262  omnimkv  7284