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Theorem subgrprop3 16112
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 2231 . . . 4  |-  (iEdg `  S )  =  (iEdg `  S )
4 eqid 2231 . . . 4  |-  (iEdg `  G )  =  (iEdg `  G )
5 subgrprop3.e . . . 4  |-  E  =  (Edg `  S )
61, 2, 3, 4, 5subgrprop2 16110 . . 3  |-  ( S SubGraph  G  ->  ( V  C_  A  /\  (iEdg `  S
)  C_  (iEdg `  G
)  /\  E  C_  ~P V ) )
7 3simpa 1020 . . 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 4962 . . . . 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 16106 . . . . . 6  |-  ( S SubGraph  G  ->  ( S  e. 
_V  /\  G  e.  _V ) )
13 edgval 15910 . . . . . . . . 9  |-  (Edg `  S )  =  ran  (iEdg `  S )
1413a1i 9 . . . . . . . 8  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  (Edg `  S )  =  ran  (iEdg `  S
) )
155, 14eqtrid 2276 . . . . . . 7  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  E  =  ran  (iEdg `  S ) )
16 subgrprop3.b . . . . . . . 8  |-  B  =  (Edg `  G )
17 edgval 15910 . . . . . . . . 9  |-  (Edg `  G )  =  ran  (iEdg `  G )
1817a1i 9 . . . . . . . 8  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  (Edg `  G )  =  ran  (iEdg `  G
) )
1916, 18eqtrid 2276 . . . . . . 7  |-  ( ( S  e.  _V  /\  G  e.  _V )  ->  B  =  ran  (iEdg `  G ) )
2015, 19sseq12d 3258 . . . . . 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 1004    = wceq 1397    e. wcel 2202   _Vcvv 2802    C_ wss 3200   ~Pcpw 3652   class class class wbr 4088   ran crn 4726   ` cfv 5326  Vtxcvtx 15862  iEdgciedg 15863  Edgcedg 15907   SubGraph csubgr 16103
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-cnex 8122  ax-resscn 8123  ax-1cn 8124  ax-1re 8125  ax-icn 8126  ax-addcl 8127  ax-addrcl 8128  ax-mulcl 8129  ax-addcom 8131  ax-mulcom 8132  ax-addass 8133  ax-mulass 8134  ax-distr 8135  ax-i2m1 8136  ax-1rid 8138  ax-0id 8139  ax-rnegex 8140  ax-cnre 8142
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-ral 2515  df-rex 2516  df-reu 2517  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-if 3606  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-fo 5332  df-fv 5334  df-riota 5970  df-ov 6020  df-oprab 6021  df-mpo 6022  df-2nd 6303  df-sub 8351  df-inn 9143  df-2 9201  df-3 9202  df-4 9203  df-5 9204  df-6 9205  df-7 9206  df-8 9207  df-9 9208  df-n0 9402  df-dec 9611  df-ndx 13084  df-slot 13085  df-edgf 15855  df-iedg 15865  df-edg 15908  df-subgr 16104
This theorem is referenced by: (None)
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