Theorem sbcieg 3810

Description: Conversion of implicit substitution to explicit class substitution. (Contributed by NM, 10-Nov-2005.)

Hypothesis

Ref	Expression
sbcieg.1	⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))

Assertion

Ref	Expression
sbcieg	⊢ (𝐴 ∈ 𝑉 → ([𝐴 / 𝑥]𝜑 ↔ 𝜓))

Distinct variable groups:   𝑥,𝐴   𝜓,𝑥

Allowed substitution hints:   𝜑(𝑥)   𝑉(𝑥)

Proof of Theorem sbcieg

Step	Hyp	Ref	Expression
1		nfv 1915	. 2 ⊢ Ⅎ𝑥𝜓
2		sbcieg.1	. 2 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))
3	1, 2	sbciegf 3809	1 ⊢ (𝐴 ∈ 𝑉 → ([𝐴 / 𝑥]𝜑 ↔ 𝜓))

Syntax hints:   → wi 4   ↔ wb 208   = wceq 1537   ∈ wcel 2114  [wsbc 3772

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-12 2177  ax-ext 2793

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-ex 1781  df-nf 1785  df-sb 2070  df-clab 2800  df-cleq 2814  df-clel 2893  df-v 3496  df-sbc 3773

This theorem is referenced by:  sbcie  3812  2nreu  4393  reuprg0  4638  rabsnif  4659  ralrnmptw  6860  ralrnmpt  6862  fpwwe2lem3  10055  nn1suc  11660  opfi1uzind  13860  mndind  17992  fgcl  22486  cfinfil  22501  csdfil  22502  supfil  22503  fin1aufil  22540  ifeqeqx  30297  nn0min  30536  bnj1452  32324  cdlemk35s  38088  cdlemk39s  38090  cdlemk42  38092  2nn0ind  39562  zindbi  39563  prproropreud  43691