Theorem sbcth 3791

Description: A substitution into a theorem remains true (when 𝐴 is a set). (Contributed by NM, 5-Nov-2005.)

Hypothesis

Ref	Expression
sbcth.1	⊢ 𝜑

Assertion

Ref	Expression
sbcth	⊢ (𝐴 ∈ 𝑉 → [𝐴 / 𝑥]𝜑)

Proof of Theorem sbcth

Step	Hyp	Ref	Expression
1		sbcth.1	. . 3 ⊢ 𝜑
2	1	ax-gen 1797	. 2 ⊢ ∀𝑥𝜑
3		spsbc 3789	. 2 ⊢ (𝐴 ∈ 𝑉 → (∀𝑥𝜑 → [𝐴 / 𝑥]𝜑))
4	2, 3	mpi 20	1 ⊢ (𝐴 ∈ 𝑉 → [𝐴 / 𝑥]𝜑)

Syntax hints:   → wi 4  ∀wal 1539   ∈ wcel 2106  [wsbc 3776

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-ext 2703

This theorem depends on definitions:  df-bi 206  df-an 397  df-tru 1544  df-ex 1782  df-sb 2068  df-clab 2710  df-cleq 2724  df-clel 2810  df-sbc 3777

This theorem is referenced by:  iota4an  6522  tfinds2  7849  wunnat  17903  wunnatOLD  17904  catcfuccl  18065  catcfucclOLD  18066  dprdval  19867  opsbc2ie  31703  bj-sbceqgALT  35770  f1omptsnlem  36205  mptsnunlem  36207  topdifinffinlem  36216  relowlpssretop  36233  cdlemk35s  39796  cdlemk39s  39798  cdlemk42  39800  frege92  42691