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Theorem seqomlem1 6910
Description: Lemma for seq𝜔. The underlying recursion generates a sequence of pairs with the expected first values. (Contributed by Stefan O'Rear, 1-Nov-2014.) (Revised by Mario Carneiro, 23-Jun-2015.)
Hypothesis
Ref Expression
seqomlem.a  |-  Q  =  rec ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. ) ,  <. (/) ,  (  _I 
`  I ) >.
)
Assertion
Ref Expression
seqomlem1  |-  ( A  e.  om  ->  ( Q `  A )  =  <. A ,  ( 2nd `  ( Q `
 A ) )
>. )
Distinct variable groups:    Q, i,
v    A, i, v    i, F, v
Allowed substitution hints:    I( v, i)

Proof of Theorem seqomlem1
Dummy variables  a 
b are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fveq2 5696 . . 3  |-  ( a  =  (/)  ->  ( Q `
 a )  =  ( Q `  (/) ) )
2 id 22 . . . 4  |-  ( a  =  (/)  ->  a  =  (/) )
31fveq2d 5700 . . . 4  |-  ( a  =  (/)  ->  ( 2nd `  ( Q `  a
) )  =  ( 2nd `  ( Q `
 (/) ) ) )
42, 3opeq12d 4072 . . 3  |-  ( a  =  (/)  ->  <. a ,  ( 2nd `  ( Q `  a )
) >.  =  <. (/) ,  ( 2nd `  ( Q `
 (/) ) ) >.
)
51, 4eqeq12d 2457 . 2  |-  ( a  =  (/)  ->  ( ( Q `  a )  =  <. a ,  ( 2nd `  ( Q `
 a ) )
>. 
<->  ( Q `  (/) )  = 
<. (/) ,  ( 2nd `  ( Q `  (/) ) )
>. ) )
6 fveq2 5696 . . 3  |-  ( a  =  b  ->  ( Q `  a )  =  ( Q `  b ) )
7 id 22 . . . 4  |-  ( a  =  b  ->  a  =  b )
86fveq2d 5700 . . . 4  |-  ( a  =  b  ->  ( 2nd `  ( Q `  a ) )  =  ( 2nd `  ( Q `  b )
) )
97, 8opeq12d 4072 . . 3  |-  ( a  =  b  ->  <. a ,  ( 2nd `  ( Q `  a )
) >.  =  <. b ,  ( 2nd `  ( Q `  b )
) >. )
106, 9eqeq12d 2457 . 2  |-  ( a  =  b  ->  (
( Q `  a
)  =  <. a ,  ( 2nd `  ( Q `  a )
) >. 
<->  ( Q `  b
)  =  <. b ,  ( 2nd `  ( Q `  b )
) >. ) )
11 fveq2 5696 . . 3  |-  ( a  =  suc  b  -> 
( Q `  a
)  =  ( Q `
 suc  b )
)
12 id 22 . . . 4  |-  ( a  =  suc  b  -> 
a  =  suc  b
)
1311fveq2d 5700 . . . 4  |-  ( a  =  suc  b  -> 
( 2nd `  ( Q `  a )
)  =  ( 2nd `  ( Q `  suc  b ) ) )
1412, 13opeq12d 4072 . . 3  |-  ( a  =  suc  b  ->  <. a ,  ( 2nd `  ( Q `  a
) ) >.  =  <. suc  b ,  ( 2nd `  ( Q `  suc  b ) ) >.
)
1511, 14eqeq12d 2457 . 2  |-  ( a  =  suc  b  -> 
( ( Q `  a )  =  <. a ,  ( 2nd `  ( Q `  a )
) >. 
<->  ( Q `  suc  b )  =  <. suc  b ,  ( 2nd `  ( Q `  suc  b ) ) >.
) )
16 fveq2 5696 . . 3  |-  ( a  =  A  ->  ( Q `  a )  =  ( Q `  A ) )
17 id 22 . . . 4  |-  ( a  =  A  ->  a  =  A )
1816fveq2d 5700 . . . 4  |-  ( a  =  A  ->  ( 2nd `  ( Q `  a ) )  =  ( 2nd `  ( Q `  A )
) )
1917, 18opeq12d 4072 . . 3  |-  ( a  =  A  ->  <. a ,  ( 2nd `  ( Q `  a )
) >.  =  <. A , 
( 2nd `  ( Q `  A )
) >. )
2016, 19eqeq12d 2457 . 2  |-  ( a  =  A  ->  (
( Q `  a
)  =  <. a ,  ( 2nd `  ( Q `  a )
) >. 
<->  ( Q `  A
)  =  <. A , 
( 2nd `  ( Q `  A )
) >. ) )
21 seqomlem.a . . . . 5  |-  Q  =  rec ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. ) ,  <. (/) ,  (  _I 
`  I ) >.
)
2221fveq1i 5697 . . . 4  |-  ( Q `
 (/) )  =  ( rec ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. ) ,  <. (/) ,  (  _I 
`  I ) >.
) `  (/) )
23 opex 4561 . . . . 5  |-  <. (/) ,  (  _I  `  I )
>.  e.  _V
2423rdg0 6882 . . . 4  |-  ( rec ( ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. ) ,  <. (/)
,  (  _I  `  I ) >. ) `  (/) )  =  <. (/)
,  (  _I  `  I ) >.
2522, 24eqtri 2463 . . 3  |-  ( Q `
 (/) )  =  <. (/)
,  (  _I  `  I ) >.
26 0ex 4427 . . . . . . 7  |-  (/)  e.  _V
27 fvex 5706 . . . . . . 7  |-  (  _I 
`  I )  e. 
_V
2826, 27op2nd 6591 . . . . . 6  |-  ( 2nd `  <. (/) ,  (  _I 
`  I ) >.
)  =  (  _I 
`  I )
2928eqcomi 2447 . . . . 5  |-  (  _I 
`  I )  =  ( 2nd `  <. (/)
,  (  _I  `  I ) >. )
3029opeq2i 4068 . . . 4  |-  <. (/) ,  (  _I  `  I )
>.  =  <. (/) ,  ( 2nd `  <. (/) ,  (  _I  `  I )
>. ) >.
31 id 22 . . . 4  |-  ( ( Q `  (/) )  = 
<. (/) ,  (  _I 
`  I ) >.  ->  ( Q `  (/) )  = 
<. (/) ,  (  _I 
`  I ) >.
)
32 fveq2 5696 . . . . 5  |-  ( ( Q `  (/) )  = 
<. (/) ,  (  _I 
`  I ) >.  ->  ( 2nd `  ( Q `  (/) ) )  =  ( 2nd `  <. (/)
,  (  _I  `  I ) >. )
)
3332opeq2d 4071 . . . 4  |-  ( ( Q `  (/) )  = 
<. (/) ,  (  _I 
`  I ) >.  -> 
<. (/) ,  ( 2nd `  ( Q `  (/) ) )
>.  =  <. (/) ,  ( 2nd `  <. (/) ,  (  _I  `  I )
>. ) >. )
3430, 31, 333eqtr4a 2501 . . 3  |-  ( ( Q `  (/) )  = 
<. (/) ,  (  _I 
`  I ) >.  ->  ( Q `  (/) )  = 
<. (/) ,  ( 2nd `  ( Q `  (/) ) )
>. )
3525, 34ax-mp 5 . 2  |-  ( Q `
 (/) )  =  <. (/)
,  ( 2nd `  ( Q `  (/) ) )
>.
36 df-ov 6099 . . . . . 6  |-  ( b ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) ( 2nd `  ( Q `  b )
) )  =  ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  <. b ,  ( 2nd `  ( Q `  b )
) >. )
37 fvex 5706 . . . . . . 7  |-  ( 2nd `  ( Q `  b
) )  e.  _V
38 suceq 4789 . . . . . . . . 9  |-  ( i  =  b  ->  suc  i  =  suc  b )
39 oveq1 6103 . . . . . . . . 9  |-  ( i  =  b  ->  (
i F v )  =  ( b F v ) )
4038, 39opeq12d 4072 . . . . . . . 8  |-  ( i  =  b  ->  <. suc  i ,  ( i F v ) >.  =  <. suc  b ,  ( b F v ) >.
)
41 oveq2 6104 . . . . . . . . 9  |-  ( v  =  ( 2nd `  ( Q `  b )
)  ->  ( b F v )  =  ( b F ( 2nd `  ( Q `
 b ) ) ) )
4241opeq2d 4071 . . . . . . . 8  |-  ( v  =  ( 2nd `  ( Q `  b )
)  ->  <. suc  b ,  ( b F v ) >.  =  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >. )
43 eqid 2443 . . . . . . . 8  |-  ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. )  =  ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. )
44 opex 4561 . . . . . . . 8  |-  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >.  e.  _V
4540, 42, 43, 44ovmpt2 6231 . . . . . . 7  |-  ( ( b  e.  om  /\  ( 2nd `  ( Q `
 b ) )  e.  _V )  -> 
( b ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. )
( 2nd `  ( Q `  b )
) )  =  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >. )
4637, 45mpan2 671 . . . . . 6  |-  ( b  e.  om  ->  (
b ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. ) ( 2nd `  ( Q `  b
) ) )  = 
<. suc  b ,  ( b F ( 2nd `  ( Q `  b
) ) ) >.
)
4736, 46syl5eqr 2489 . . . . 5  |-  ( b  e.  om  ->  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  <. b ,  ( 2nd `  ( Q `  b )
) >. )  =  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >. )
48 fveq2 5696 . . . . . 6  |-  ( ( Q `  b )  =  <. b ,  ( 2nd `  ( Q `
 b ) )
>.  ->  ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. ) `  ( Q `  b
) )  =  ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  <. b ,  ( 2nd `  ( Q `  b )
) >. ) )
4948eqeq1d 2451 . . . . 5  |-  ( ( Q `  b )  =  <. b ,  ( 2nd `  ( Q `
 b ) )
>.  ->  ( ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) `  ( Q `  b ) )  = 
<. suc  b ,  ( b F ( 2nd `  ( Q `  b
) ) ) >.  <->  ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  <. b ,  ( 2nd `  ( Q `  b )
) >. )  =  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >. )
)
5047, 49syl5ibrcom 222 . . . 4  |-  ( b  e.  om  ->  (
( Q `  b
)  =  <. b ,  ( 2nd `  ( Q `  b )
) >.  ->  ( (
i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) `  ( Q `  b ) )  = 
<. suc  b ,  ( b F ( 2nd `  ( Q `  b
) ) ) >.
) )
51 vex 2980 . . . . . . . . . 10  |-  b  e. 
_V
5251sucex 6427 . . . . . . . . 9  |-  suc  b  e.  _V
53 ovex 6121 . . . . . . . . 9  |-  ( b F ( 2nd `  ( Q `  b )
) )  e.  _V
5452, 53op2nd 6591 . . . . . . . 8  |-  ( 2nd `  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >. )  =  ( b F ( 2nd `  ( Q `  b
) ) )
5554eqcomi 2447 . . . . . . 7  |-  ( b F ( 2nd `  ( Q `  b )
) )  =  ( 2nd `  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >. )
5655a1i 11 . . . . . 6  |-  ( b  e.  om  ->  (
b F ( 2nd `  ( Q `  b
) ) )  =  ( 2nd `  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >. )
)
5756opeq2d 4071 . . . . 5  |-  ( b  e.  om  ->  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >.  =  <. suc  b ,  ( 2nd `  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >. ) >. )
58 id 22 . . . . . 6  |-  ( ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) )  =  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >.  ->  ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) `  ( Q `  b ) )  = 
<. suc  b ,  ( b F ( 2nd `  ( Q `  b
) ) ) >.
)
59 fveq2 5696 . . . . . . 7  |-  ( ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) )  =  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >.  ->  ( 2nd `  ( ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. ) `  ( Q `  b )
) )  =  ( 2nd `  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >. )
)
6059opeq2d 4071 . . . . . 6  |-  ( ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) )  =  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >.  ->  <. suc  b ,  ( 2nd `  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) ) ) >.  =  <. suc  b ,  ( 2nd `  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >. ) >. )
6158, 60eqeq12d 2457 . . . . 5  |-  ( ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) )  =  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >.  ->  ( ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) )  =  <. suc  b , 
( 2nd `  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) ) ) >.  <->  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >.  =  <. suc  b ,  ( 2nd `  <. suc  b , 
( b F ( 2nd `  ( Q `
 b ) ) ) >. ) >. )
)
6257, 61syl5ibrcom 222 . . . 4  |-  ( b  e.  om  ->  (
( ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. ) `  ( Q `  b )
)  =  <. suc  b ,  ( b F ( 2nd `  ( Q `  b )
) ) >.  ->  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) )  =  <. suc  b , 
( 2nd `  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) ) ) >. ) )
6350, 62syld 44 . . 3  |-  ( b  e.  om  ->  (
( Q `  b
)  =  <. b ,  ( 2nd `  ( Q `  b )
) >.  ->  ( (
i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) `  ( Q `  b ) )  = 
<. suc  b ,  ( 2nd `  ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) `  ( Q `  b ) ) )
>. ) )
64 frsuc 6897 . . . . 5  |-  ( b  e.  om  ->  (
( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. )  |`  om ) `  suc  b )  =  ( ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. ) `  (
( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. )  |`  om ) `  b ) ) )
65 peano2 6501 . . . . . . 7  |-  ( b  e.  om  ->  suc  b  e.  om )
66 fvres 5709 . . . . . . 7  |-  ( suc  b  e.  om  ->  ( ( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. )  |`  om ) `  suc  b )  =  ( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. ) `  suc  b
) )
6765, 66syl 16 . . . . . 6  |-  ( b  e.  om  ->  (
( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. )  |`  om ) `  suc  b )  =  ( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. ) `  suc  b
) )
6821fveq1i 5697 . . . . . 6  |-  ( Q `
 suc  b )  =  ( rec (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) ,  <. (/) ,  (  _I  `  I )
>. ) `  suc  b
)
6967, 68syl6eqr 2493 . . . . 5  |-  ( b  e.  om  ->  (
( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. )  |`  om ) `  suc  b )  =  ( Q `  suc  b ) )
70 fvres 5709 . . . . . . 7  |-  ( b  e.  om  ->  (
( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. )  |`  om ) `  b )  =  ( rec ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. ) ,  <. (/) ,  (  _I 
`  I ) >.
) `  b )
)
7121fveq1i 5697 . . . . . . 7  |-  ( Q `
 b )  =  ( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. ) `  b )
7270, 71syl6eqr 2493 . . . . . 6  |-  ( b  e.  om  ->  (
( rec ( ( i  e.  om , 
v  e.  _V  |->  <. suc  i ,  ( i F v ) >.
) ,  <. (/) ,  (  _I  `  I )
>. )  |`  om ) `  b )  =  ( Q `  b ) )
7372fveq2d 5700 . . . . 5  |-  ( b  e.  om  ->  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( ( rec ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. ) ,  <. (/) ,  (  _I 
`  I ) >.
)  |`  om ) `  b ) )  =  ( ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. ) `  ( Q `  b )
) )
7464, 69, 733eqtr3d 2483 . . . 4  |-  ( b  e.  om  ->  ( Q `  suc  b )  =  ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v ) >. ) `  ( Q `  b
) ) )
7574fveq2d 5700 . . . . 5  |-  ( b  e.  om  ->  ( 2nd `  ( Q `  suc  b ) )  =  ( 2nd `  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) ) ) )
7675opeq2d 4071 . . . 4  |-  ( b  e.  om  ->  <. suc  b ,  ( 2nd `  ( Q `  suc  b ) ) >.  =  <. suc  b ,  ( 2nd `  ( ( i  e. 
om ,  v  e. 
_V  |->  <. suc  i , 
( i F v ) >. ) `  ( Q `  b )
) ) >. )
7774, 76eqeq12d 2457 . . 3  |-  ( b  e.  om  ->  (
( Q `  suc  b )  =  <. suc  b ,  ( 2nd `  ( Q `  suc  b ) ) >.  <->  ( ( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) )  =  <. suc  b , 
( 2nd `  (
( i  e.  om ,  v  e.  _V  |->  <. suc  i ,  ( i F v )
>. ) `  ( Q `
 b ) ) ) >. ) )
7863, 77sylibrd 234 . 2  |-  ( b  e.  om  ->  (
( Q `  b
)  =  <. b ,  ( 2nd `  ( Q `  b )
) >.  ->  ( Q `  suc  b )  = 
<. suc  b ,  ( 2nd `  ( Q `
 suc  b )
) >. ) )
795, 10, 15, 20, 35, 78finds 6507 1  |-  ( A  e.  om  ->  ( Q `  A )  =  <. A ,  ( 2nd `  ( Q `
 A ) )
>. )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    = wceq 1369    e. wcel 1756   _Vcvv 2977   (/)c0 3642   <.cop 3888    _I cid 4636   suc csuc 4726    |` cres 4847   ` cfv 5423  (class class class)co 6096    e. cmpt2 6098   omcom 6481   2ndc2nd 6581   reccrdg 6870
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1591  ax-4 1602  ax-5 1670  ax-6 1708  ax-7 1728  ax-8 1758  ax-9 1760  ax-10 1775  ax-11 1780  ax-12 1792  ax-13 1943  ax-ext 2423  ax-sep 4418  ax-nul 4426  ax-pow 4475  ax-pr 4536  ax-un 6377
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 966  df-3an 967  df-tru 1372  df-ex 1587  df-nf 1590  df-sb 1701  df-eu 2257  df-mo 2258  df-clab 2430  df-cleq 2436  df-clel 2439  df-nfc 2573  df-ne 2613  df-ral 2725  df-rex 2726  df-reu 2727  df-rab 2729  df-v 2979  df-sbc 3192  df-csb 3294  df-dif 3336  df-un 3338  df-in 3340  df-ss 3347  df-pss 3349  df-nul 3643  df-if 3797  df-pw 3867  df-sn 3883  df-pr 3885  df-tp 3887  df-op 3889  df-uni 4097  df-iun 4178  df-br 4298  df-opab 4356  df-mpt 4357  df-tr 4391  df-eprel 4637  df-id 4641  df-po 4646  df-so 4647  df-fr 4684  df-we 4686  df-ord 4727  df-on 4728  df-lim 4729  df-suc 4730  df-xp 4851  df-rel 4852  df-cnv 4853  df-co 4854  df-dm 4855  df-rn 4856  df-res 4857  df-ima 4858  df-iota 5386  df-fun 5425  df-fn 5426  df-f 5427  df-f1 5428  df-fo 5429  df-f1o 5430  df-fv 5431  df-ov 6099  df-oprab 6100  df-mpt2 6101  df-om 6482  df-2nd 6583  df-recs 6837  df-rdg 6871
This theorem is referenced by:  seqomlem2  6911  seqomlem4  6913
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