Theorem elpreimad 6936

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 6935	. . 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 710	1 ⊢ (𝜑 → 𝐵 ∈ (◡𝐹 “ 𝐶))

Syntax hints:   → wi 4   ↔ wb 205   ∧ wa 396   ∈ wcel 2106  ^◡ccnv 5588   “ cima 5592   Fn wfn 6428  ‘cfv 6433

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-sep 5223  ax-nul 5230  ax-pr 5352

This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ral 3069  df-rex 3070  df-rab 3073  df-v 3434  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-nul 4257  df-if 4460  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-br 5075  df-opab 5137  df-id 5489  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-iota 6391  df-fun 6435  df-fn 6436  df-fv 6441

This theorem is referenced by:  fpwwe2lem8  10394  evlslem3  21290  rhmpreimaidl  31603  rhmpreimaprmidl  31627  dimkerim  31708  smfsuplem1  44344