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Mirrors > Home > MPE Home > Th. List > sizusglecusg | Structured version Visualization version GIF version |
Description: The size of a simple graph with 𝑛 vertices is at most the size of a complete simple graph with 𝑛 vertices (𝑛 may be infinite). (Contributed by Alexander van der Vekens, 13-Jan-2018.) (Revised by AV, 13-Nov-2020.) |
Ref | Expression |
---|---|
fusgrmaxsize.v | ⊢ 𝑉 = (Vtx‘𝐺) |
fusgrmaxsize.e | ⊢ 𝐸 = (Edg‘𝐺) |
usgrsscusgra.h | ⊢ 𝑉 = (Vtx‘𝐻) |
usgrsscusgra.f | ⊢ 𝐹 = (Edg‘𝐻) |
Ref | Expression |
---|---|
sizusglecusg | ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → (♯‘𝐸) ≤ (♯‘𝐹)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fusgrmaxsize.e | . . . . . . . . 9 ⊢ 𝐸 = (Edg‘𝐺) | |
2 | 1 | fvexi 6788 | . . . . . . . 8 ⊢ 𝐸 ∈ V |
3 | resiexg 7761 | . . . . . . . 8 ⊢ (𝐸 ∈ V → ( I ↾ 𝐸) ∈ V) | |
4 | 2, 3 | mp1i 13 | . . . . . . 7 ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → ( I ↾ 𝐸) ∈ V) |
5 | fusgrmaxsize.v | . . . . . . . 8 ⊢ 𝑉 = (Vtx‘𝐺) | |
6 | usgrsscusgra.h | . . . . . . . 8 ⊢ 𝑉 = (Vtx‘𝐻) | |
7 | usgrsscusgra.f | . . . . . . . 8 ⊢ 𝐹 = (Edg‘𝐻) | |
8 | 5, 1, 6, 7 | sizusglecusglem1 27828 | . . . . . . 7 ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → ( I ↾ 𝐸):𝐸–1-1→𝐹) |
9 | f1eq1 6665 | . . . . . . 7 ⊢ (𝑓 = ( I ↾ 𝐸) → (𝑓:𝐸–1-1→𝐹 ↔ ( I ↾ 𝐸):𝐸–1-1→𝐹)) | |
10 | 4, 8, 9 | spcedv 3537 | . . . . . 6 ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → ∃𝑓 𝑓:𝐸–1-1→𝐹) |
11 | 10 | adantl 482 | . . . . 5 ⊢ (((𝐸 ∈ Fin ∧ 𝐹 ∈ Fin) ∧ (𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph)) → ∃𝑓 𝑓:𝐸–1-1→𝐹) |
12 | hashdom 14094 | . . . . . . 7 ⊢ ((𝐸 ∈ Fin ∧ 𝐹 ∈ Fin) → ((♯‘𝐸) ≤ (♯‘𝐹) ↔ 𝐸 ≼ 𝐹)) | |
13 | 12 | adantr 481 | . . . . . 6 ⊢ (((𝐸 ∈ Fin ∧ 𝐹 ∈ Fin) ∧ (𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph)) → ((♯‘𝐸) ≤ (♯‘𝐹) ↔ 𝐸 ≼ 𝐹)) |
14 | brdomg 8746 | . . . . . . . 8 ⊢ (𝐹 ∈ Fin → (𝐸 ≼ 𝐹 ↔ ∃𝑓 𝑓:𝐸–1-1→𝐹)) | |
15 | 14 | adantl 482 | . . . . . . 7 ⊢ ((𝐸 ∈ Fin ∧ 𝐹 ∈ Fin) → (𝐸 ≼ 𝐹 ↔ ∃𝑓 𝑓:𝐸–1-1→𝐹)) |
16 | 15 | adantr 481 | . . . . . 6 ⊢ (((𝐸 ∈ Fin ∧ 𝐹 ∈ Fin) ∧ (𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph)) → (𝐸 ≼ 𝐹 ↔ ∃𝑓 𝑓:𝐸–1-1→𝐹)) |
17 | 13, 16 | bitrd 278 | . . . . 5 ⊢ (((𝐸 ∈ Fin ∧ 𝐹 ∈ Fin) ∧ (𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph)) → ((♯‘𝐸) ≤ (♯‘𝐹) ↔ ∃𝑓 𝑓:𝐸–1-1→𝐹)) |
18 | 11, 17 | mpbird 256 | . . . 4 ⊢ (((𝐸 ∈ Fin ∧ 𝐹 ∈ Fin) ∧ (𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph)) → (♯‘𝐸) ≤ (♯‘𝐹)) |
19 | 18 | exp31 420 | . . 3 ⊢ (𝐸 ∈ Fin → (𝐹 ∈ Fin → ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → (♯‘𝐸) ≤ (♯‘𝐹)))) |
20 | 5, 1, 6, 7 | sizusglecusglem2 27829 | . . . . . 6 ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph ∧ 𝐹 ∈ Fin) → 𝐸 ∈ Fin) |
21 | 20 | pm2.24d 151 | . . . . 5 ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph ∧ 𝐹 ∈ Fin) → (¬ 𝐸 ∈ Fin → (♯‘𝐸) ≤ (♯‘𝐹))) |
22 | 21 | 3expia 1120 | . . . 4 ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → (𝐹 ∈ Fin → (¬ 𝐸 ∈ Fin → (♯‘𝐸) ≤ (♯‘𝐹)))) |
23 | 22 | com13 88 | . . 3 ⊢ (¬ 𝐸 ∈ Fin → (𝐹 ∈ Fin → ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → (♯‘𝐸) ≤ (♯‘𝐹)))) |
24 | 19, 23 | pm2.61i 182 | . 2 ⊢ (𝐹 ∈ Fin → ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → (♯‘𝐸) ≤ (♯‘𝐹))) |
25 | 7 | fvexi 6788 | . . . 4 ⊢ 𝐹 ∈ V |
26 | nfile 14074 | . . . 4 ⊢ ((𝐸 ∈ V ∧ 𝐹 ∈ V ∧ ¬ 𝐹 ∈ Fin) → (♯‘𝐸) ≤ (♯‘𝐹)) | |
27 | 2, 25, 26 | mp3an12 1450 | . . 3 ⊢ (¬ 𝐹 ∈ Fin → (♯‘𝐸) ≤ (♯‘𝐹)) |
28 | 27 | a1d 25 | . 2 ⊢ (¬ 𝐹 ∈ Fin → ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → (♯‘𝐸) ≤ (♯‘𝐹))) |
29 | 24, 28 | pm2.61i 182 | 1 ⊢ ((𝐺 ∈ USGraph ∧ 𝐻 ∈ ComplUSGraph) → (♯‘𝐸) ≤ (♯‘𝐹)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∃wex 1782 ∈ wcel 2106 Vcvv 3432 class class class wbr 5074 I cid 5488 ↾ cres 5591 –1-1→wf1 6430 ‘cfv 6433 ≼ cdom 8731 Fincfn 8733 ≤ cle 11010 ♯chash 14044 Vtxcvtx 27366 Edgcedg 27417 USGraphcusgr 27519 ComplUSGraphccusgr 27777 |
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-rmo 3071 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-op 4568 df-uni 4840 df-int 4880 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-2o 8298 df-oadd 8301 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-dju 9659 df-card 9697 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-n0 12234 df-xnn0 12306 df-z 12320 df-uz 12583 df-fz 13240 df-hash 14045 df-vtx 27368 df-iedg 27369 df-edg 27418 df-uhgr 27428 df-upgr 27452 df-umgr 27453 df-uspgr 27520 df-usgr 27521 df-fusgr 27684 df-nbgr 27700 df-uvtx 27753 df-cplgr 27778 df-cusgr 27779 |
This theorem is referenced by: fusgrmaxsize 27831 |
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