Theorem elpreimad 7001

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 7000	. . 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 713	1 ⊢ (𝜑 → 𝐵 ∈ (◡𝐹 “ 𝐶))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   ∈ wcel 2113  ^◡ccnv 5620   “ cima 5624   Fn wfn 6484  ‘cfv 6489

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 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-12 2182  ax-ext 2705  ax-sep 5238  ax-nul 5248  ax-pr 5374

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2537  df-eu 2566  df-clab 2712  df-cleq 2725  df-clel 2808  df-ne 2930  df-ral 3049  df-rex 3058  df-rab 3397  df-v 3439  df-dif 3901  df-un 3903  df-in 3905  df-ss 3915  df-nul 4283  df-if 4477  df-sn 4578  df-pr 4580  df-op 4584  df-uni 4861  df-br 5096  df-opab 5158  df-id 5516  df-xp 5627  df-rel 5628  df-cnv 5629  df-co 5630  df-dm 5631  df-rn 5632  df-res 5633  df-ima 5634  df-iota 6445  df-fun 6491  df-fn 6492  df-fv 6497

This theorem is referenced by:  fpwwe2lem8  10540  rhmpreimaidl  21223  evlslem3  22026  elrgspnsubrunlem2  33258  rhmpreimaprmidl  33460  ply1degltel  33603  ply1degleel  33604  ply1degltlss  33605  exsslsb  33681  ply1degltdimlem  33707  ply1degltdim  33708  dimkerim  33712  lvecendof1f1o  33718  zndvdchrrhm  42138  smfsuplem1  46971