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Theorem subgrprop3 16257
Description: The properties of a subgraph: If  S is a subgraph of  G, its vertices are also vertices of  G, and its edges are also edges of  G. (Contributed by AV, 19-Nov-2020.)
Hypotheses
Ref Expression
subgrprop3.v  |-  V  =  (Vtx `  S )
subgrprop3.a  |-  A  =  (Vtx `  G )
subgrprop3.e  |-  E  =  (Edg `  S )
subgrprop3.b  |-  B  =  (Edg `  G )
Assertion
Ref Expression
subgrprop3  |-  ( S SubGraph  G  ->  ( V  C_  A  /\  E  C_  B
) )

Proof of Theorem subgrprop3
StepHypRef Expression
1 subgrprop3.v . . . 4  |-  V  =  (Vtx `  S )
2 subgrprop3.a . . . 4  |-  A  =  (Vtx `  G )
3 eqid 2232 . . . 4  |-  (iEdg `  S )  =  (iEdg `  S )
4 eqid 2232 . . . 4  |-  (iEdg `  G )  =  (iEdg `  G )
5 subgrprop3.e . . . 4  |-  E  =  (Edg `  S )
61, 2, 3, 4, 5subgrprop2 16255 . . 3  |-  ( S SubGraph  G  ->  ( V  C_  A  /\  (iEdg `  S
)  C_  (iEdg `  G
)  /\  E  C_  ~P V ) )
7 3simpa 1021 . . 3  |-  ( ( V  C_  A  /\  (iEdg `  S )  C_  (iEdg `  G )  /\  E  C_  ~P V )  ->  ( V  C_  A  /\  (iEdg `  S
)  C_  (iEdg `  G
) ) )
86, 7syl 14 . 2  |-  ( S SubGraph  G  ->  ( V  C_  A  /\  (iEdg `  S
)  C_  (iEdg `  G
) ) )
9 simprl 531 . . 3  |-  ( ( S SubGraph  G  /\  ( V  C_  A  /\  (iEdg `  S )  C_  (iEdg `  G ) ) )  ->  V  C_  A
)
10 rnss 4987 . . . . 5  |-  ( (iEdg `  S )  C_  (iEdg `  G )  ->  ran  (iEdg `  S )  C_  ran  (iEdg `  G )
)
1110ad2antll 491 . . . 4  |-  ( ( S SubGraph  G  /\  ( V  C_  A  /\  (iEdg `  S )  C_  (iEdg `  G ) ) )  ->  ran  (iEdg `  S
)  C_  ran  (iEdg `  G ) )
12 subgrv 16251 . . . . . 6  |-  ( S SubGraph  G  ->  ( S  e. 
_V  /\  G  e.  _V ) )
13 edgval 16055 . . . . . . . . 9  |-  (Edg `  S )  =  ran  (iEdg `  S )
1413a1i 9 . . . . . . . 8  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  (Edg `  S )  =  ran  (iEdg `  S
) )
155, 14eqtrid 2277 . . . . . . 7  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  E  =  ran  (iEdg `  S ) )
16 subgrprop3.b . . . . . . . 8  |-  B  =  (Edg `  G )
17 edgval 16055 . . . . . . . . 9  |-  (Edg `  G )  =  ran  (iEdg `  G )
1817a1i 9 . . . . . . . 8  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  (Edg `  G )  =  ran  (iEdg `  G
) )
1916, 18eqtrid 2277 . . . . . . 7  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  B  =  ran  (iEdg `  G ) )
2015, 19sseq12d 3269 . . . . . 6  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  ( E  C_  B  <->  ran  (iEdg `  S )  C_ 
ran  (iEdg `  G )
) )
2112, 20syl 14 . . . . 5  |-  ( S SubGraph  G  ->  ( E  C_  B 
<->  ran  (iEdg `  S
)  C_  ran  (iEdg `  G ) ) )
2221adantr 276 . . . 4  |-  ( ( S SubGraph  G  /\  ( V  C_  A  /\  (iEdg `  S )  C_  (iEdg `  G ) ) )  ->  ( E  C_  B 
<->  ran  (iEdg `  S
)  C_  ran  (iEdg `  G ) ) )
2311, 22mpbird 167 . . 3  |-  ( ( S SubGraph  G  /\  ( V  C_  A  /\  (iEdg `  S )  C_  (iEdg `  G ) ) )  ->  E  C_  B
)
249, 23jca 306 . 2  |-  ( ( S SubGraph  G  /\  ( V  C_  A  /\  (iEdg `  S )  C_  (iEdg `  G ) ) )  ->  ( V  C_  A  /\  E  C_  B
) )
258, 24mpdan 421 1  |-  ( S SubGraph  G  ->  ( V  C_  A  /\  E  C_  B
) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    <-> wb 105    /\ w3a 1005    = wceq 1398    e. wcel 2203   _Vcvv 2813    C_ wss 3211   ~Pcpw 3669   class class class wbr 4109   ran crn 4750   ` cfv 5352  Vtxcvtx 16007  iEdgciedg 16008  Edgcedg 16052   SubGraph csubgr 16248
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-sep 4228  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-setind 4659  ax-cnex 8218  ax-resscn 8219  ax-1cn 8220  ax-1re 8221  ax-icn 8222  ax-addcl 8223  ax-addrcl 8224  ax-mulcl 8225  ax-addcom 8227  ax-mulcom 8228  ax-addass 8229  ax-mulass 8230  ax-distr 8231  ax-i2m1 8232  ax-1rid 8234  ax-0id 8235  ax-rnegex 8236  ax-cnre 8238
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-ral 2525  df-rex 2526  df-reu 2527  df-rab 2529  df-v 2815  df-sbc 3043  df-csb 3139  df-dif 3213  df-un 3215  df-in 3217  df-ss 3224  df-if 3621  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-int 3950  df-br 4110  df-opab 4172  df-mpt 4173  df-id 4414  df-xp 4755  df-rel 4756  df-cnv 4757  df-co 4758  df-dm 4759  df-rn 4760  df-res 4761  df-ima 4762  df-iota 5312  df-fun 5354  df-fn 5355  df-f 5356  df-fo 5358  df-fv 5360  df-riota 6003  df-ov 6053  df-oprab 6054  df-mpo 6055  df-2nd 6335  df-sub 8446  df-inn 9238  df-2 9296  df-3 9297  df-4 9298  df-5 9299  df-6 9300  df-7 9301  df-8 9302  df-9 9303  df-n0 9497  df-dec 9710  df-ndx 13215  df-slot 13216  df-edgf 16000  df-iedg 16010  df-edg 16053  df-subgr 16249
This theorem is referenced by: (None)
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