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Theorem elpm2r 6632
Description: Sufficient condition for being a partial function. (Contributed by NM, 31-Dec-2013.)
Assertion
Ref Expression
elpm2r  |-  ( ( ( A  e.  V  /\  B  e.  W
)  /\  ( F : C --> A  /\  C  C_  B ) )  ->  F  e.  ( A  ^pm  B ) )

Proof of Theorem elpm2r
StepHypRef Expression
1 fdm 5343 . . . . . . 7  |-  ( F : C --> A  ->  dom  F  =  C )
21feq2d 5325 . . . . . 6  |-  ( F : C --> A  -> 
( F : dom  F --> A  <->  F : C --> A ) )
31sseq1d 3171 . . . . . 6  |-  ( F : C --> A  -> 
( dom  F  C_  B  <->  C 
C_  B ) )
42, 3anbi12d 465 . . . . 5  |-  ( F : C --> A  -> 
( ( F : dom  F --> A  /\  dom  F 
C_  B )  <->  ( F : C --> A  /\  C  C_  B ) ) )
54adantr 274 . . . 4  |-  ( ( F : C --> A  /\  C  C_  B )  -> 
( ( F : dom  F --> A  /\  dom  F 
C_  B )  <->  ( F : C --> A  /\  C  C_  B ) ) )
65ibir 176 . . 3  |-  ( ( F : C --> A  /\  C  C_  B )  -> 
( F : dom  F --> A  /\  dom  F  C_  B ) )
7 elpm2g 6631 . . 3  |-  ( ( A  e.  V  /\  B  e.  W )  ->  ( F  e.  ( A  ^pm  B )  <->  ( F : dom  F --> A  /\  dom  F  C_  B ) ) )
86, 7syl5ibr 155 . 2  |-  ( ( A  e.  V  /\  B  e.  W )  ->  ( ( F : C
--> A  /\  C  C_  B )  ->  F  e.  ( A  ^pm  B
) ) )
98imp 123 1  |-  ( ( ( A  e.  V  /\  B  e.  W
)  /\  ( F : C --> A  /\  C  C_  B ) )  ->  F  e.  ( A  ^pm  B ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    <-> wb 104    e. wcel 2136    C_ wss 3116   dom cdm 4604   -->wf 5184  (class class class)co 5842    ^pm cpm 6615
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 604  ax-in2 605  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-13 2138  ax-14 2139  ax-ext 2147  ax-sep 4100  ax-pow 4153  ax-pr 4187  ax-un 4411  ax-setind 4514
This theorem depends on definitions:  df-bi 116  df-3an 970  df-tru 1346  df-fal 1349  df-nf 1449  df-sb 1751  df-eu 2017  df-mo 2018  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-ne 2337  df-ral 2449  df-rex 2450  df-rab 2453  df-v 2728  df-sbc 2952  df-dif 3118  df-un 3120  df-in 3122  df-ss 3129  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-uni 3790  df-br 3983  df-opab 4044  df-id 4271  df-xp 4610  df-rel 4611  df-cnv 4612  df-co 4613  df-dm 4614  df-rn 4615  df-iota 5153  df-fun 5190  df-fn 5191  df-f 5192  df-fv 5196  df-ov 5845  df-oprab 5846  df-mpo 5847  df-pm 6617
This theorem is referenced by:  fpmg  6640  pmresg  6642  ennnfonelemg  12336  lmbrf  12855  ellimc3apf  13269  dvfvalap  13290  dvmulxxbr  13306  dvaddxx  13307  dvmulxx  13308  dviaddf  13309  dvimulf  13310  dvcoapbr  13311  dvmptclx  13320
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