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Mirrors > Home > NFE Home > Th. List > imageexg | GIF version |
Description: The image function of a set is a set. (Contributed by SF, 11-Feb-2015.) |
Ref | Expression |
---|---|
imageexg | ⊢ (A ∈ V → ImageA ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-image 5755 | . 2 ⊢ ImageA = ∼ (( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) “ 1c) | |
2 | siexg 4753 | . . . . 5 ⊢ (A ∈ V → SI A ∈ V) | |
3 | cnvexg 5102 | . . . . 5 ⊢ ( SI A ∈ V → ◡ SI A ∈ V) | |
4 | ssetex 4745 | . . . . . 6 ⊢ S ∈ V | |
5 | coexg 4750 | . . . . . 6 ⊢ (( S ∈ V ∧ ◡ SI A ∈ V) → ( S ∘ ◡ SI A) ∈ V) | |
6 | 4, 5 | mpan 651 | . . . . 5 ⊢ (◡ SI A ∈ V → ( S ∘ ◡ SI A) ∈ V) |
7 | 2, 3, 6 | 3syl 18 | . . . 4 ⊢ (A ∈ V → ( S ∘ ◡ SI A) ∈ V) |
8 | ins3exg 5797 | . . . 4 ⊢ (( S ∘ ◡ SI A) ∈ V → Ins3 ( S ∘ ◡ SI A) ∈ V) | |
9 | 4 | ins2ex 5798 | . . . . 5 ⊢ Ins2 S ∈ V |
10 | symdifexg 4104 | . . . . 5 ⊢ (( Ins2 S ∈ V ∧ Ins3 ( S ∘ ◡ SI A) ∈ V) → ( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) ∈ V) | |
11 | 9, 10 | mpan 651 | . . . 4 ⊢ ( Ins3 ( S ∘ ◡ SI A) ∈ V → ( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) ∈ V) |
12 | 7, 8, 11 | 3syl 18 | . . 3 ⊢ (A ∈ V → ( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) ∈ V) |
13 | 1cex 4143 | . . . 4 ⊢ 1c ∈ V | |
14 | imaexg 4747 | . . . 4 ⊢ ((( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) ∈ V ∧ 1c ∈ V) → (( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) “ 1c) ∈ V) | |
15 | 13, 14 | mpan2 652 | . . 3 ⊢ (( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) ∈ V → (( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) “ 1c) ∈ V) |
16 | complexg 4100 | . . 3 ⊢ ((( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) “ 1c) ∈ V → ∼ (( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) “ 1c) ∈ V) | |
17 | 12, 15, 16 | 3syl 18 | . 2 ⊢ (A ∈ V → ∼ (( Ins2 S ⊕ Ins3 ( S ∘ ◡ SI A)) “ 1c) ∈ V) |
18 | 1, 17 | syl5eqel 2437 | 1 ⊢ (A ∈ V → ImageA ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1710 Vcvv 2860 ∼ ccompl 3206 ⊕ csymdif 3210 1cc1c 4135 S csset 4720 SI csi 4721 ∘ ccom 4722 “ cima 4723 ◡ccnv 4772 Ins2 cins2 5750 Ins3 cins3 5752 Imagecimage 5754 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-13 1712 ax-14 1714 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 ax-nin 4079 ax-xp 4080 ax-cnv 4081 ax-1c 4082 ax-sset 4083 ax-si 4084 ax-ins2 4085 ax-ins3 4086 ax-typlower 4087 ax-sn 4088 |
This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-3or 935 df-3an 936 df-nan 1288 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-eu 2208 df-mo 2209 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2479 df-ne 2519 df-ral 2620 df-rex 2621 df-reu 2622 df-rmo 2623 df-rab 2624 df-v 2862 df-sbc 3048 df-nin 3212 df-compl 3213 df-in 3214 df-un 3215 df-dif 3216 df-symdif 3217 df-ss 3260 df-pss 3262 df-nul 3552 df-if 3664 df-pw 3725 df-sn 3742 df-pr 3743 df-uni 3893 df-int 3928 df-opk 4059 df-1c 4137 df-pw1 4138 df-uni1 4139 df-xpk 4186 df-cnvk 4187 df-ins2k 4188 df-ins3k 4189 df-imak 4190 df-cok 4191 df-p6 4192 df-sik 4193 df-ssetk 4194 df-imagek 4195 df-idk 4196 df-iota 4340 df-0c 4378 df-addc 4379 df-nnc 4380 df-fin 4381 df-lefin 4441 df-ltfin 4442 df-ncfin 4443 df-tfin 4444 df-evenfin 4445 df-oddfin 4446 df-sfin 4447 df-spfin 4448 df-phi 4566 df-op 4567 df-proj1 4568 df-proj2 4569 df-opab 4624 df-br 4641 df-1st 4724 df-swap 4725 df-sset 4726 df-co 4727 df-ima 4728 df-si 4729 df-cnv 4786 df-2nd 4798 df-txp 5737 df-ins2 5751 df-ins3 5753 df-image 5755 |
This theorem is referenced by: imageex 5802 |
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