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Theorem spcv 2919
Description: Rule of specialization, using implicit substitution. (Contributed by NM, 22-Jun-1994.)
Hypotheses
Ref Expression
spcv.1 𝐴 ∈ V
spcv.2 (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))
Assertion
Ref Expression
spcv (∀𝑥𝜑 → 𝜓)
Distinct variable groups:   𝑥,𝐴   𝜓,𝑥
Allowed substitution hint:   𝜑(𝑥)

Proof of Theorem spcv
StepHypRef Expression
1 spcv.1 . 2 𝐴 ∈ V
2 spcv.2 . . 3 (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))
32spcgv 2912 . 2 (𝐴 ∈ V → (∀𝑥𝜑 → 𝜓))
41, 3ax-mp 5 1 (∀𝑥𝜑 → 𝜓)
Colors of variables:    wff set class
This proof depends on syntax axioms:   → wi 4   ↔ wb 105  ∀wal 1400   = wceq 1402   ∈ wcel 2209  Vcvv 2821
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220
This proof depends on definitions:  df-bi 117  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-v 2823
This theorem is used by:  morex  3010  exmidexmid  4335  exmidsssn  4341  exmidel  4344  rext  4357  ontr2exmid  4674  regexmidlem1  4682  reg2exmid  4685  relop  4932  uchoice  6375  disjxp1  6476  rdgtfr  6650  ssfiexmid  7184  ssfiexmidt  7186  domfiexmid  7188  diffitest  7197  findcard  7198  exmidpw2en  7225  fiintim  7244  fisseneq  7248  finomni  7485  exmidomni  7487  exmidlpo  7488  ballotfilem2  13284  exmidunben  13373  ivthreinc  15880  bj-d0clsepcl  17165  bj-inf2vnlem1  17210  subctctexmid  17244  wexmiddiffilem  17257  wexmiddifxy  17260
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