Theorem elpreimad 7049

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 7048	. . 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 2108  ^◡ccnv 5653   “ cima 5657   Fn wfn 6526  ‘cfv 6531

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-12 2177  ax-ext 2707  ax-sep 5266  ax-nul 5276  ax-pr 5402

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-ne 2933  df-ral 3052  df-rex 3061  df-rab 3416  df-v 3461  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-nul 4309  df-if 4501  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-br 5120  df-opab 5182  df-id 5548  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-rn 5665  df-res 5666  df-ima 5667  df-iota 6484  df-fun 6533  df-fn 6534  df-fv 6539

This theorem is referenced by:  fpwwe2lem8  10652  rhmpreimaidl  21238  evlslem3  22038  elrgspnsubrunlem2  33243  rhmpreimaprmidl  33466  ply1degltel  33604  ply1degleel  33605  ply1degltlss  33606  exsslsb  33636  ply1degltdimlem  33662  ply1degltdim  33663  dimkerim  33667  lvecendof1f1o  33673  zndvdchrrhm  41985  smfsuplem1  46840