Theorem elpreimad 7013

Description: Membership in the preimage of a set under a function. (Contributed by Glauco Siliprandi, 23-Oct-2021.)

Hypotheses

Ref	Expression
elpreimad.f	⊢ (𝜑 → 𝐹 Fn 𝐴)
elpreimad.b	⊢ (𝜑 → 𝐵 ∈ 𝐴)
elpreimad.c	⊢ (𝜑 → (𝐹‘𝐵) ∈ 𝐶)

Assertion

Ref	Expression
elpreimad	⊢ (𝜑 → 𝐵 ∈ (◡𝐹 “ 𝐶))

Proof of Theorem elpreimad

Step	Hyp	Ref	Expression
1		elpreimad.b	. 2 ⊢ (𝜑 → 𝐵 ∈ 𝐴)
2		elpreimad.c	. 2 ⊢ (𝜑 → (𝐹‘𝐵) ∈ 𝐶)
3		elpreimad.f	. . 3 ⊢ (𝜑 → 𝐹 Fn 𝐴)
4		elpreima 7012	. . 3 ⊢ (𝐹 Fn 𝐴 → (𝐵 ∈ (◡𝐹 “ 𝐶) ↔ (𝐵 ∈ 𝐴 ∧ (𝐹‘𝐵) ∈ 𝐶)))
5	3, 4	syl 17	. 2 ⊢ (𝜑 → (𝐵 ∈ (◡𝐹 “ 𝐶) ↔ (𝐵 ∈ 𝐴 ∧ (𝐹‘𝐵) ∈ 𝐶)))
6	1, 2, 5	mpbir2and 714	1 ⊢ (𝜑 → 𝐵 ∈ (◡𝐹 “ 𝐶))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   ∈ wcel 2114  ^◡ccnv 5631   “ cima 5635   Fn wfn 6495  ‘cfv 6500

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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-12 2185  ax-ext 2709  ax-sep 5243  ax-nul 5253  ax-pr 5379

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-ne 2934  df-ral 3053  df-rex 3063  df-rab 3402  df-v 3444  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4288  df-if 4482  df-sn 4583  df-pr 4585  df-op 4589  df-uni 4866  df-br 5101  df-opab 5163  df-id 5527  df-xp 5638  df-rel 5639  df-cnv 5640  df-co 5641  df-dm 5642  df-rn 5643  df-res 5644  df-ima 5645  df-iota 6456  df-fun 6502  df-fn 6503  df-fv 6508

This theorem is referenced by:  fpwwe2lem8  10561  rhmpreimaidl  21244  evlslem3  22047  elrgspnsubrunlem2  33341  rhmpreimaprmidl  33543  ply1degltel  33686  ply1degleel  33687  ply1degltlss  33688  exsslsb  33773  ply1degltdimlem  33799  ply1degltdim  33800  dimkerim  33804  lvecendof1f1o  33810  zndvdchrrhm  42339  smfsuplem1  47166