Theorem difexi 4809

Description: Existence of a difference, inference version of difexg 4808. (Contributed by Glauco Siliprandi, 3-Mar-2021.) (Revised by AV, 26-Mar-2021.)

Hypothesis

Ref	Expression
difexi.1	⊢ 𝐴 ∈ V

Assertion

Ref	Expression
difexi	⊢ (𝐴 ∖ 𝐵) ∈ V

Proof of Theorem difexi

Step	Hyp	Ref	Expression
1		difexi.1	. 2 ⊢ 𝐴 ∈ V
2		difexg 4808	. 2 ⊢ (𝐴 ∈ V → (𝐴 ∖ 𝐵) ∈ V)
3	1, 2	ax-mp 5	1 ⊢ (𝐴 ∖ 𝐵) ∈ V

Syntax hints:   ∈ wcel 1990  Vcvv 3200   ∖ cdif 3571

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-v 3202  df-dif 3577  df-in 3581  df-ss 3588

This theorem is referenced by:  marypha1lem  8339  inf3lem3  8527  kmlem11  8982  kmlem12  8983  opfi1uzind  13283  uhgrspan1lem1  26192  upgrres1lem1  26201  nbgrval  26234  vtxdginducedm1lem1  26435  vtxdginducedm1fi  26440  finsumvtxdg2ssteplem4  26444  setindtr  37591  ssdifcl  37876  clsk3nimkb  38338  meaiuninclem  40697  meaiininclem  40700