Theorem alimdv 1928

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 1575	. 2 ⊢ (𝜑 → ∀𝑥𝜑)
2		alimdv.1	. 2 ⊢ (𝜑 → (𝜓 → 𝜒))
3	1, 2	alimdh 1516	1 ⊢ (𝜑 → (∀𝑥𝜓 → ∀𝑥𝜒))

Syntax hints:   → wi 4  ∀wal 1396

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-5 1496  ax-gen 1498  ax-17 1575

This theorem is referenced by:  2alimdv  1930  moim  2145  ralimdv2  2612  sstr2  3245  reuss2  3501  ssuni  3936  disjss2  4088  disjss1  4091  disjiun  4104  exmidsssnc  4316  soss  4435  alxfr  4582  ssrel  4838  ssrel2  4840  ssrelrel  4850  iotaval  5324  omnimkv  7447