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Mirrors > Home > MPE Home > Th. List > trlsegvdeglem3 | Structured version Visualization version GIF version |
Description: Lemma for trlsegvdeg 30024. (Contributed by AV, 20-Feb-2021.) |
Ref | Expression |
---|---|
trlsegvdeg.v | β’ π = (VtxβπΊ) |
trlsegvdeg.i | β’ πΌ = (iEdgβπΊ) |
trlsegvdeg.f | β’ (π β Fun πΌ) |
trlsegvdeg.n | β’ (π β π β (0..^(β―βπΉ))) |
trlsegvdeg.u | β’ (π β π β π) |
trlsegvdeg.w | β’ (π β πΉ(TrailsβπΊ)π) |
trlsegvdeg.vx | β’ (π β (Vtxβπ) = π) |
trlsegvdeg.vy | β’ (π β (Vtxβπ) = π) |
trlsegvdeg.vz | β’ (π β (Vtxβπ) = π) |
trlsegvdeg.ix | β’ (π β (iEdgβπ) = (πΌ βΎ (πΉ β (0..^π)))) |
trlsegvdeg.iy | β’ (π β (iEdgβπ) = {β¨(πΉβπ), (πΌβ(πΉβπ))β©}) |
trlsegvdeg.iz | β’ (π β (iEdgβπ) = (πΌ βΎ (πΉ β (0...π)))) |
Ref | Expression |
---|---|
trlsegvdeglem3 | β’ (π β Fun (iEdgβπ)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvex 6904 | . . . 4 β’ (πΉβπ) β V | |
2 | fvex 6904 | . . . 4 β’ (πΌβ(πΉβπ)) β V | |
3 | 1, 2 | pm3.2i 470 | . . 3 β’ ((πΉβπ) β V β§ (πΌβ(πΉβπ)) β V) |
4 | funsng 6598 | . . 3 β’ (((πΉβπ) β V β§ (πΌβ(πΉβπ)) β V) β Fun {β¨(πΉβπ), (πΌβ(πΉβπ))β©}) | |
5 | 3, 4 | mp1i 13 | . 2 β’ (π β Fun {β¨(πΉβπ), (πΌβ(πΉβπ))β©}) |
6 | trlsegvdeg.iy | . . 3 β’ (π β (iEdgβπ) = {β¨(πΉβπ), (πΌβ(πΉβπ))β©}) | |
7 | 6 | funeqd 6569 | . 2 β’ (π β (Fun (iEdgβπ) β Fun {β¨(πΉβπ), (πΌβ(πΉβπ))β©})) |
8 | 5, 7 | mpbird 257 | 1 β’ (π β Fun (iEdgβπ)) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 β§ wa 395 = wceq 1534 β wcel 2099 Vcvv 3469 {csn 4624 β¨cop 4630 class class class wbr 5142 βΎ cres 5674 β cima 5675 Fun wfun 6536 βcfv 6542 (class class class)co 7414 0cc0 11130 ...cfz 13508 ..^cfzo 13651 β―chash 14313 Vtxcvtx 28796 iEdgciedg 28797 Trailsctrls 29491 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-ext 2698 ax-sep 5293 ax-nul 5300 ax-pr 5423 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-sb 2061 df-mo 2529 df-clab 2705 df-cleq 2719 df-clel 2805 df-ne 2936 df-ral 3057 df-rex 3066 df-rab 3428 df-v 3471 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-nul 4319 df-if 4525 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-br 5143 df-opab 5205 df-id 5570 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-iota 6494 df-fun 6544 df-fv 6550 |
This theorem is referenced by: trlsegvdeg 30024 |
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