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Mirrors > Home > MPE Home > Th. List > 0conngr | Structured version Visualization version GIF version |
Description: A graph without vertices is connected. (Contributed by Alexander van der Vekens, 2-Dec-2017.) (Revised by AV, 15-Feb-2021.) |
Ref | Expression |
---|---|
0conngr | β’ β β ConnGraph |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ral0 4512 | . 2 β’ βπ β β βπ β β βπβπ π(π(PathsOnββ )π)π | |
2 | 0ex 5307 | . . 3 β’ β β V | |
3 | vtxval0 28289 | . . . . 5 β’ (Vtxββ ) = β | |
4 | 3 | eqcomi 2742 | . . . 4 β’ β = (Vtxββ ) |
5 | 4 | isconngr 29432 | . . 3 β’ (β β V β (β β ConnGraph β βπ β β βπ β β βπβπ π(π(PathsOnββ )π)π)) |
6 | 2, 5 | ax-mp 5 | . 2 β’ (β β ConnGraph β βπ β β βπ β β βπβπ π(π(PathsOnββ )π)π) |
7 | 1, 6 | mpbir 230 | 1 β’ β β ConnGraph |
Colors of variables: wff setvar class |
Syntax hints: β wb 205 βwex 1782 β wcel 2107 βwral 3062 Vcvv 3475 β c0 4322 class class class wbr 5148 βcfv 6541 (class class class)co 7406 Vtxcvtx 28246 PathsOncpthson 28961 ConnGraphcconngr 29429 |
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 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7722 ax-cnex 11163 ax-1cn 11165 ax-addcl 11167 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-ral 3063 df-rex 3072 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6298 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6493 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-ov 7409 df-om 7853 df-2nd 7973 df-frecs 8263 df-wrecs 8294 df-recs 8368 df-rdg 8407 df-nn 12210 df-slot 17112 df-ndx 17124 df-base 17142 df-vtx 28248 df-conngr 29430 |
This theorem is referenced by: (None) |
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