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Related theorems GIF version |
| Description: The range of a projection. |
| Ref | Expression |
|---|---|
| pjfn.1 | ⊢ H ∈ Cℋ |
| Ref | Expression |
|---|---|
| pjrn | ⊢ ran (Proj ‘H) = H |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rnopab 2566 | . 2 ⊢ ran {〈x, y〉∣(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))} = {y∣∃x(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))} | |
| 2 | pjfn.1 | . . . . 5 ⊢ H ∈ Cℋ | |
| 3 | 2 | pjfn 5586 | . . . 4 ⊢ (Proj ‘H) Fn ℋ |
| 4 | fnopabfv 2858 | . . . 4 ⊢ ((Proj ‘H) Fn ℋ ↔ (Proj ‘H) = {〈x, y〉∣(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))}) | |
| 5 | 3, 4 | mpbi 164 | . . 3 ⊢ (Proj ‘H) = {〈x, y〉∣(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))} |
| 6 | 5 | rneqi 2556 | . 2 ⊢ ran (Proj ‘H) = ran {〈x, y〉∣(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))} |
| 7 | visset 1350 | . . . . . 6 ⊢ y ∈ V | |
| 8 | eleq1 1149 | . . . . . . 7 ⊢ (x = y → (x ∈ ℋ ↔ y ∈ ℋ )) | |
| 9 | fveq2 2832 | . . . . . . . 8 ⊢ (x = y → ((Proj ‘H) ‘x) = ((Proj ‘H) ‘y)) | |
| 10 | 9 | cleq2d 1112 | . . . . . . 7 ⊢ (x = y → (y = ((Proj ‘H) ‘x) ↔ y = ((Proj ‘H) ‘y))) |
| 11 | 8, 10 | anbi12d 476 | . . . . . 6 ⊢ (x = y → ((x ∈ ℋ ∧ y = ((Proj ‘H) ‘x)) ↔ (y ∈ ℋ ∧ y = ((Proj ‘H) ‘y)))) |
| 12 | 7, 11 | cla4ev 1401 | . . . . 5 ⊢ ((y ∈ ℋ ∧ y = ((Proj ‘H) ‘y)) → ∃x(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))) |
| 13 | 2 | chel 5137 | . . . . 5 ⊢ (y ∈ H → y ∈ ℋ ) |
| 14 | pjcht 5582 | . . . . . . . . 9 ⊢ ((H ∈ Cℋ ∧ y ∈ ℋ ) → (y ∈ H ↔ ((Proj ‘H) ‘y) = y)) | |
| 15 | 2, 14 | mpan 518 | . . . . . . . 8 ⊢ (y ∈ ℋ → (y ∈ H ↔ ((Proj ‘H) ‘y) = y)) |
| 16 | 15 | biimpd 135 | . . . . . . 7 ⊢ (y ∈ ℋ → (y ∈ H → ((Proj ‘H) ‘y) = y)) |
| 17 | 13, 16 | mpcom 49 | . . . . . 6 ⊢ (y ∈ H → ((Proj ‘H) ‘y) = y) |
| 18 | 17 | cleqcomd 1106 | . . . . 5 ⊢ (y ∈ H → y = ((Proj ‘H) ‘y)) |
| 19 | 12, 13, 18 | sylanc 361 | . . . 4 ⊢ (y ∈ H → ∃x(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))) |
| 20 | eleq1 1149 | . . . . . . . 8 ⊢ (y = ((Proj ‘H) ‘x) → (y ∈ H ↔ ((Proj ‘H) ‘x) ∈ H)) | |
| 21 | 2 | pjcl 5255 | . . . . . . . 8 ⊢ (x ∈ ℋ → ((Proj ‘H) ‘x) ∈ H) |
| 22 | 20, 21 | syl5bir 184 | . . . . . . 7 ⊢ (y = ((Proj ‘H) ‘x) → (x ∈ ℋ → y ∈ H)) |
| 23 | 22 | com12 13 | . . . . . 6 ⊢ (x ∈ ℋ → (y = ((Proj ‘H) ‘x) → y ∈ H)) |
| 24 | 23 | imp 277 | . . . . 5 ⊢ ((x ∈ ℋ ∧ y = ((Proj ‘H) ‘x)) → y ∈ H) |
| 25 | 24 | 19.23aiv 952 | . . . 4 ⊢ (∃x(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x)) → y ∈ H) |
| 26 | 19, 25 | impbi 139 | . . 3 ⊢ (y ∈ H ↔ ∃x(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))) |
| 27 | 26 | biabri 1180 | . 2 ⊢ H = {y∣∃x(x ∈ ℋ ∧ y = ((Proj ‘H) ‘x))} |
| 28 | 1, 6, 27 | 3eqtr4 1126 | 1 ⊢ ran (Proj ‘H) = H |
| Colors of variables: wff set class |
| Syntax hints: ↔ wb 127 ∧ wa 196 ∃wex 678 = weq 797 {cab 1090 = wceq 1091 ∈ wcel 1092 {copab 2055 ran crn 2411 Fn wfn 2417 ‘cfv 2422 ℋ chil 4958 Cℋ cch 4968 Projcpj 4976 |
| This theorem is referenced by: pjf 5588 pj11 5591 pjoi0 5592 pjss1co 5633 pj3 5660 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 ax-reg 1078 ax-inf 1079 ax-ac 1080 ax-hilex 4983 ax-hvaddcl 4984 ax-hvcom 4985 ax-hvass 4986 ax-hvzercl 4987 ax-hvaddid 4988 ax-hvmulcl 4989 ax-hvmulid 4991 ax-hvmulass 4992 ax-hvdistr1 4993 ax-hvdistr2 4994 ax-hvmulzer 4995 ax-hicl 5043 ax-his1 5045 ax-his2 5046 ax-his3 5047 ax-his4 5048 ax-hcompl 5113 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3or 582 df-3an 583 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-ne 1192 df-ral 1205 df-rex 1206 df-reu 1207 df-rab 1208 df-v 1349 df-sbc 1441 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-pss 1494 df-nul 1708 df-if 1777 df-pw 1799 df-sn 1811 df-pr 1812 df-tp 1814 df-op 1815 df-uni 1920 df-int 1966 df-iun 1996 df-tr 2042 df-br 2063 df-opab 2098 df-eprel 2122 df-id 2125 df-po 2128 df-so 2138 df-sup 2154 df-fr 2169 df-we 2186 df-ord 2202 df-on 2203 df-lim 2204 df-suc 2205 df-om 2373 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fn 2433 df-f 2434 df-f1 2435 df-fo 2436 df-f1o 2437 df-fv 2438 df-rdg 2970 df-opr 3003 df-oprab 3004 df-1st 3087 df-2nd 3088 df-1o 3104 df-oadd 3106 df-omul 3107 df-er 3200 df-ec 3202 df-qs 3205 df-ni 3794 df-pli 3795 df-mi 3796 df-lti 3797 df-plpq 3829 df-mpq 3830 df-enq 3831 df-nq 3832 df-plq 3833 df-mq 3834 df-rq 3835 df-ltq 3836 df-1q 3837 df-np 3880 df-1p 3881 df-plp 3882 df-mp 3883 df-ltp 3884 df-plpr 3958 df-mpr 3959 df-enr 3960 df-nr 3961 df-plr 3962 df-mr 3963 df-ltr 3964 df-0r 3965 df-1r 3966 df-m1r 3967 df-c 4034 df-0 4035 df-1 4036 df-i 4037 df-r 4038 df-plus 4039 df-mul 4040 df-lt 4041 df-sub 4133 df-neg 4135 df-div 4216 df-le 4277 df-n 4423 df-2 4462 df-3 4463 df-4 4464 df-n0 4535 df-z 4564 df-seq 4661 df-exp 4676 df-sqr 4728 df-re 4790 df-im 4791 df-cj 4792 df-abs 4793 df-clim 4876 df-hvsub 4996 df-hnorm 5074 df-cauchy 5102 df-hlim 5107 df-sh 5114 df-ch 5127 df-oc 5156 df-ch0 5157 df-pj 5244 |