Theorem strsetsid 13363

Description: Value of the structure replacement function. (Contributed by AV, 14-Mar-2020.) (Revised by Jim Kingdon, 30-Jan-2023.)

Hypotheses

Ref	Expression
strsetsid.e	|- E = Slot ( E ` ndx )
strsetsid.s	|- ( ph -> S Struct <. M , N >. )
strsetsid.f	|- ( ph -> Fun S )
strsetsid.d	|- ( ph -> ( E ` ndx ) e. dom S )

Assertion

Ref	Expression
strsetsid	|- ( ph -> S = ( S sSet <. ( E ` ndx ) , ( E ` S ) >. ) )

Proof of Theorem strsetsid

Dummy variables x y are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		strsetsid.s	. . . 4 |- ( ph -> S Struct <. M , N >. )
2		structex 13342	. . . 4 |- ( S Struct <. M , N >. -> S e. _V )
3	1, 2	syl 14	. . 3 |- ( ph -> S e. _V )
4		strsetsid.d	. . 3 |- ( ph -> ( E ` ndx ) e. dom S )
5		strsetsid.e	. . . . 5 |- E = Slot ( E ` ndx )
6		isstructim 13344	. . . . . . . . 9 |- ( S Struct <. M , N >. -> ( ( M e. NN /\ N e. NN /\ M <_ N ) /\ Fun ( S \ { (/) } ) /\ dom S C_ ( M ... N ) ) )
7	1, 6	syl 14	. . . . . . . 8 |- ( ph -> ( ( M e. NN /\ N e. NN /\ M <_ N ) /\ Fun ( S \ { (/) } ) /\ dom S C_ ( M ... N ) ) )
8	7	simp3d 1042	. . . . . . 7 |- ( ph -> dom S C_ ( M ... N ) )
9	7	simp1d 1040	. . . . . . . . 9 |- ( ph -> ( M e. NN /\ N e. NN /\ M <_ N ) )
10	9	simp1d 1040	. . . . . . . 8 |- ( ph -> M e. NN )
11		fzssnn 10452	. . . . . . . 8 |- ( M e. NN -> ( M ... N ) C_ NN )
12	10, 11	syl 14	. . . . . . 7 |- ( ph -> ( M ... N ) C_ NN )
13	8, 12	sstrd 3258	. . . . . 6 |- ( ph -> dom S C_ NN )
14	13, 4	sseldd 3249	. . . . 5 |- ( ph -> ( E ` ndx ) e. NN )
15	5, 3, 14	strnfvnd 13350	. . . 4 |- ( ph -> ( E ` S ) = ( S ` ( E ` ndx ) ) )
16		strsetsid.f	. . . . 5 |- ( ph -> Fun S )
17		funfvex 5707	. . . . 5 |- ( ( Fun S /\ ( E ` ndx ) e. dom S ) -> ( S ` ( E ` ndx ) ) e. _V )
18	16, 4, 17	syl2anc 415	. . . 4 |- ( ph -> ( S ` ( E ` ndx ) ) e. _V )
19	15, 18	eqeltrd 2315	. . 3 |- ( ph -> ( E ` S ) e. _V )
20		setsvala 13361	. . 3 |- ( ( S e. _V /\ ( E ` ndx ) e. dom S /\ ( E ` S ) e. _V ) -> ( S sSet <. ( E ` ndx ) , ( E ` S ) >. ) = ( ( S |` ( _V \ { ( E ` ndx ) } ) ) u. { <. ( E ` ndx ) , ( E ` S ) >. } ) )
21	3, 4, 19, 20	syl3anc 1278	. 2 |- ( ph -> ( S sSet <. ( E ` ndx ) , ( E ` S ) >. ) = ( ( S |` ( _V \ { ( E ` ndx ) } ) ) u. { <. ( E ` ndx ) , ( E ` S ) >. } ) )
22	15	opeq2d 3906	. . . 4 |- ( ph -> <. ( E ` ndx ) , ( E ` S ) >. = <. ( E ` ndx ) , ( S ` ( E ` ndx ) ) >. )
23	22	sneqd 3718	. . 3 |- ( ph -> { <. ( E ` ndx ) , ( E ` S ) >. } = { <. ( E ` ndx ) , ( S ` ( E ` ndx ) ) >. } )
24	23	uneq2d 3383	. 2 |- ( ph -> ( ( S |` ( _V \ { ( E ` ndx ) } ) ) u. { <. ( E ` ndx ) , ( E ` S ) >. } ) = ( ( S |` ( _V \ { ( E ` ndx ) } ) ) u. { <. ( E ` ndx ) , ( S ` ( E ` ndx ) ) >. } ) )
25		nnssz 9640	. . . . 5 |- NN C_ ZZ
26	13, 25	sstrdi 3260	. . . 4 |- ( ph -> dom S C_ ZZ )
27		zdceq 9699	. . . . 5 |- ( ( x e. ZZ /\ y e. ZZ ) -> DECID x = y )
28	27	rgen2a 2604	. . . 4 |- A. x e. ZZ A. y e. ZZ DECID x = y
29		ssralv 3312	. . . . . 6 |- ( dom S C_ ZZ -> ( A. y e. ZZ DECID x = y -> A. y e. dom SDECID x = y ) )
30	29	ralimdv 2618	. . . . 5 |- ( dom S C_ ZZ -> ( A. x e. ZZ A. y e. ZZ DECID x = y -> A. x e. ZZ A. y e. dom SDECID x = y ) )
31		ssralv 3312	. . . . 5 |- ( dom S C_ ZZ -> ( A. x e. ZZ A. y e. dom SDECID x = y -> A. x e. dom S A. y e. dom SDECID x = y ) )
32	30, 31	syld 45	. . . 4 |- ( dom S C_ ZZ -> ( A. x e. ZZ A. y e. ZZ DECID x = y -> A. x e. dom S A. y e. dom SDECID x = y ) )
33	26, 28, 32	mpisyl 1496	. . 3 |- ( ph -> A. x e. dom S A. y e. dom SDECID x = y )
34		funresdfunsndc 6769	. . 3 |- ( ( A. x e. dom S A. y e. dom SDECID x = y /\ Fun S /\ ( E ` ndx ) e. dom S ) -> ( ( S |` ( _V \ { ( E ` ndx ) } ) ) u. { <. ( E ` ndx ) , ( S ` ( E ` ndx ) ) >. } ) = S )
35	33, 16, 4, 34	syl3anc 1278	. 2 |- ( ph -> ( ( S |` ( _V \ { ( E ` ndx ) } ) ) u. { <. ( E ` ndx ) , ( S ` ( E ` ndx ) ) >. } ) = S )
36	21, 24, 35	3eqtrrd 2276	1 |- ( ph -> S = ( S sSet <. ( E ` ndx ) , ( E ` S ) >. ) )

Syntax hints:   -> wi 4  DECID wdc 846   /\ w3a 1009   = wceq 1402   e. wcel 2209   A.wral 2528   _Vcvv 2821   \ cdif 3217   u. cun 3218   C_ wss 3220   (/)c0 3520   {csn 3705   <.cop 3708   class class class wbr 4125   dom cdm 4769   |` cres 4771   Fun wfun 5366   ` cfv 5372  (class class class)co 6075   <_ cle 8351   NNcn 9283   ZZcz 9623   ...cfz 10390   Struct cstr 13326   ndxcnx 13327   sSet csts 13328  Slot cslot 13329

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 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4244  ax-pow 4306  ax-pr 4341  ax-un 4573  ax-setind 4679  ax-cnex 8260  ax-resscn 8261  ax-1cn 8262  ax-1re 8263  ax-icn 8264  ax-addcl 8265  ax-addrcl 8266  ax-mulcl 8267  ax-addcom 8269  ax-addass 8271  ax-distr 8273  ax-i2m1 8274  ax-0lt1 8275  ax-0id 8277  ax-rnegex 8278  ax-cnre 8280  ax-pre-ltirr 8281  ax-pre-ltwlin 8282  ax-pre-lttrn 8283  ax-pre-ltadd 8285

This theorem depends on definitions:  df-bi 117  df-dc 847  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rab 2537  df-v 2823  df-sbc 3052  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-int 3966  df-br 4126  df-opab 4188  df-mpt 4189  df-id 4433  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-res 4781  df-ima 4782  df-iota 5332  df-fun 5374  df-fn 5375  df-f 5376  df-f1 5377  df-fo 5378  df-f1o 5379  df-fv 5380  df-riota 6028  df-ov 6078  df-oprab 6079  df-mpo 6080  df-pnf 8352  df-mnf 8353  df-xr 8354  df-ltxr 8355  df-le 8356  df-sub 8489  df-neg 8490  df-inn 9284  df-n0 9543  df-z 9624  df-uz 9901  df-fz 10391  df-struct 13332  df-slot 13334  df-sets 13337

This theorem is referenced by:  strressid  13402