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Mirrors > Home > MPE Home > Th. List > imasless | Structured version Visualization version GIF version |
Description: The order relation defined on an image set is a subset of the base set. (Contributed by Mario Carneiro, 24-Feb-2015.) |
Ref | Expression |
---|---|
imasless.u | ⊢ (𝜑 → 𝑈 = (𝐹 “s 𝑅)) |
imasless.v | ⊢ (𝜑 → 𝑉 = (Base‘𝑅)) |
imasless.f | ⊢ (𝜑 → 𝐹:𝑉–onto→𝐵) |
imasless.r | ⊢ (𝜑 → 𝑅 ∈ 𝑍) |
imasless.l | ⊢ ≤ = (le‘𝑈) |
Ref | Expression |
---|---|
imasless | ⊢ (𝜑 → ≤ ⊆ (𝐵 × 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | imasless.u | . . 3 ⊢ (𝜑 → 𝑈 = (𝐹 “s 𝑅)) | |
2 | imasless.v | . . 3 ⊢ (𝜑 → 𝑉 = (Base‘𝑅)) | |
3 | imasless.f | . . 3 ⊢ (𝜑 → 𝐹:𝑉–onto→𝐵) | |
4 | imasless.r | . . 3 ⊢ (𝜑 → 𝑅 ∈ 𝑍) | |
5 | eqid 2738 | . . 3 ⊢ (le‘𝑅) = (le‘𝑅) | |
6 | imasless.l | . . 3 ⊢ ≤ = (le‘𝑈) | |
7 | 1, 2, 3, 4, 5, 6 | imasle 17234 | . 2 ⊢ (𝜑 → ≤ = ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹)) |
8 | relco 6148 | . . . 4 ⊢ Rel ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) | |
9 | relssdmrn 6172 | . . . 4 ⊢ (Rel ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) → ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ (dom ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) × ran ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹))) | |
10 | 8, 9 | ax-mp 5 | . . 3 ⊢ ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ (dom ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) × ran ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹)) |
11 | dmco 6158 | . . . . 5 ⊢ dom ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) = (◡◡𝐹 “ dom (𝐹 ∘ (le‘𝑅))) | |
12 | fof 6688 | . . . . . . . . 9 ⊢ (𝐹:𝑉–onto→𝐵 → 𝐹:𝑉⟶𝐵) | |
13 | frel 6605 | . . . . . . . . 9 ⊢ (𝐹:𝑉⟶𝐵 → Rel 𝐹) | |
14 | 3, 12, 13 | 3syl 18 | . . . . . . . 8 ⊢ (𝜑 → Rel 𝐹) |
15 | dfrel2 6092 | . . . . . . . 8 ⊢ (Rel 𝐹 ↔ ◡◡𝐹 = 𝐹) | |
16 | 14, 15 | sylib 217 | . . . . . . 7 ⊢ (𝜑 → ◡◡𝐹 = 𝐹) |
17 | 16 | imaeq1d 5968 | . . . . . 6 ⊢ (𝜑 → (◡◡𝐹 “ dom (𝐹 ∘ (le‘𝑅))) = (𝐹 “ dom (𝐹 ∘ (le‘𝑅)))) |
18 | imassrn 5980 | . . . . . . 7 ⊢ (𝐹 “ dom (𝐹 ∘ (le‘𝑅))) ⊆ ran 𝐹 | |
19 | forn 6691 | . . . . . . . 8 ⊢ (𝐹:𝑉–onto→𝐵 → ran 𝐹 = 𝐵) | |
20 | 3, 19 | syl 17 | . . . . . . 7 ⊢ (𝜑 → ran 𝐹 = 𝐵) |
21 | 18, 20 | sseqtrid 3973 | . . . . . 6 ⊢ (𝜑 → (𝐹 “ dom (𝐹 ∘ (le‘𝑅))) ⊆ 𝐵) |
22 | 17, 21 | eqsstrd 3959 | . . . . 5 ⊢ (𝜑 → (◡◡𝐹 “ dom (𝐹 ∘ (le‘𝑅))) ⊆ 𝐵) |
23 | 11, 22 | eqsstrid 3969 | . . . 4 ⊢ (𝜑 → dom ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ 𝐵) |
24 | rncoss 5881 | . . . . 5 ⊢ ran ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ ran (𝐹 ∘ (le‘𝑅)) | |
25 | rnco2 6157 | . . . . . 6 ⊢ ran (𝐹 ∘ (le‘𝑅)) = (𝐹 “ ran (le‘𝑅)) | |
26 | imassrn 5980 | . . . . . . 7 ⊢ (𝐹 “ ran (le‘𝑅)) ⊆ ran 𝐹 | |
27 | 26, 20 | sseqtrid 3973 | . . . . . 6 ⊢ (𝜑 → (𝐹 “ ran (le‘𝑅)) ⊆ 𝐵) |
28 | 25, 27 | eqsstrid 3969 | . . . . 5 ⊢ (𝜑 → ran (𝐹 ∘ (le‘𝑅)) ⊆ 𝐵) |
29 | 24, 28 | sstrid 3932 | . . . 4 ⊢ (𝜑 → ran ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ 𝐵) |
30 | xpss12 5604 | . . . 4 ⊢ ((dom ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ 𝐵 ∧ ran ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ 𝐵) → (dom ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) × ran ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹)) ⊆ (𝐵 × 𝐵)) | |
31 | 23, 29, 30 | syl2anc 584 | . . 3 ⊢ (𝜑 → (dom ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) × ran ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹)) ⊆ (𝐵 × 𝐵)) |
32 | 10, 31 | sstrid 3932 | . 2 ⊢ (𝜑 → ((𝐹 ∘ (le‘𝑅)) ∘ ◡𝐹) ⊆ (𝐵 × 𝐵)) |
33 | 7, 32 | eqsstrd 3959 | 1 ⊢ (𝜑 → ≤ ⊆ (𝐵 × 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2106 ⊆ wss 3887 × cxp 5587 ◡ccnv 5588 dom cdm 5589 ran crn 5590 “ cima 5592 ∘ ccom 5593 Rel wrel 5594 ⟶wf 6429 –onto→wfo 6431 ‘cfv 6433 (class class class)co 7275 Basecbs 16912 lecple 16969 “s cimas 17215 |
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-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 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-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 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-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-sup 9201 df-inf 9202 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-uz 12583 df-fz 13240 df-struct 16848 df-slot 16883 df-ndx 16895 df-base 16913 df-plusg 16975 df-mulr 16976 df-sca 16978 df-vsca 16979 df-ip 16980 df-tset 16981 df-ple 16982 df-ds 16984 df-imas 17219 |
This theorem is referenced by: xpsless 17289 |
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