Theorem peano5nnnn 8172

Description: Peano's inductive postulate. This is a counterpart to peano5nni 9205 designed for real number axioms which involve natural numbers (notably, axcaucvg 8180). (Contributed by Jim Kingdon, 14-Jul-2021.) (New usage is discouraged.)

Hypothesis

Ref	Expression
nntopi.n	|- N = |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) }

Assertion

Ref	Expression
peano5nnnn	|- ( ( 1 e. A /\ A. z e. A ( z + 1 ) e. A ) -> N C_ A )

Distinct variable groups:   x, y, A   z, A, y

Allowed substitution hints:   N( x, y, z)

Proof of Theorem peano5nnnn

Step	Hyp	Ref	Expression
1		oveq1 6035	. . . 4 |- ( y = z -> ( y + 1 ) = ( z + 1 ) )
2	1	eleq1d 2300	. . 3 |- ( y = z -> ( ( y + 1 ) e. A <-> ( z + 1 ) e. A ) )
3	2	cbvralv 2768	. 2 |- ( A. y e. A ( y + 1 ) e. A <-> A. z e. A ( z + 1 ) e. A )
4		ax1re 8142	. . . . 5 |- 1 e. RR
5		elin 3392	. . . . . 6 |- ( 1 e. ( A i^i RR ) <-> ( 1 e. A /\ 1 e. RR ) )
6	5	biimpri 133	. . . . 5 |- ( ( 1 e. A /\ 1 e. RR ) -> 1 e. ( A i^i RR ) )
7	4, 6	mpan2 425	. . . 4 |- ( 1 e. A -> 1 e. ( A i^i RR ) )
8		inss1 3429	. . . . . 6 |- ( A i^i RR ) C_ A
9		ssralv 3292	. . . . . 6 |- ( ( A i^i RR ) C_ A -> ( A. y e. A ( y + 1 ) e. A -> A. y e. ( A i^i RR ) ( y + 1 ) e. A ) )
10	8, 9	ax-mp 5	. . . . 5 |- ( A. y e. A ( y + 1 ) e. A -> A. y e. ( A i^i RR ) ( y + 1 ) e. A )
11		inss2 3430	. . . . . . . 8 |- ( A i^i RR ) C_ RR
12	11	sseli 3224	. . . . . . 7 |- ( y e. ( A i^i RR ) -> y e. RR )
13		axaddrcl 8145	. . . . . . . 8 |- ( ( y e. RR /\ 1 e. RR ) -> ( y + 1 ) e. RR )
14	4, 13	mpan2 425	. . . . . . 7 |- ( y e. RR -> ( y + 1 ) e. RR )
15		elin 3392	. . . . . . . 8 |- ( ( y + 1 ) e. ( A i^i RR ) <-> ( ( y + 1 ) e. A /\ ( y + 1 ) e. RR ) )
16	15	simplbi2com 1490	. . . . . . 7 |- ( ( y + 1 ) e. RR -> ( ( y + 1 ) e. A -> ( y + 1 ) e. ( A i^i RR ) ) )
17	12, 14, 16	3syl 17	. . . . . 6 |- ( y e. ( A i^i RR ) -> ( ( y + 1 ) e. A -> ( y + 1 ) e. ( A i^i RR ) ) )
18	17	ralimia 2594	. . . . 5 |- ( A. y e. ( A i^i RR ) ( y + 1 ) e. A -> A. y e. ( A i^i RR ) ( y + 1 ) e. ( A i^i RR ) )
19	10, 18	syl 14	. . . 4 |- ( A. y e. A ( y + 1 ) e. A -> A. y e. ( A i^i RR ) ( y + 1 ) e. ( A i^i RR ) )
20		axcnex 8139	. . . . . . 7 |- CC e. _V
21		axresscn 8140	. . . . . . 7 |- RR C_ CC
22	20, 21	ssexi 4232	. . . . . 6 |- RR e. _V
23	22	inex2 4229	. . . . 5 |- ( A i^i RR ) e. _V
24		eleq2 2295	. . . . . . . 8 |- ( x = ( A i^i RR ) -> ( 1 e. x <-> 1 e. ( A i^i RR ) ) )
25		eleq2 2295	. . . . . . . . 9 |- ( x = ( A i^i RR ) -> ( ( y + 1 ) e. x <-> ( y + 1 ) e. ( A i^i RR ) ) )
26	25	raleqbi1dv 2743	. . . . . . . 8 |- ( x = ( A i^i RR ) -> ( A. y e. x ( y + 1 ) e. x <-> A. y e. ( A i^i RR ) ( y + 1 ) e. ( A i^i RR ) ) )
27	24, 26	anbi12d 473	. . . . . . 7 |- ( x = ( A i^i RR ) -> ( ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) <-> ( 1 e. ( A i^i RR ) /\ A. y e. ( A i^i RR ) ( y + 1 ) e. ( A i^i RR ) ) ) )
28	27	elabg 2953	. . . . . 6 |- ( ( A i^i RR ) e. _V -> ( ( A i^i RR ) e. { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } <-> ( 1 e. ( A i^i RR ) /\ A. y e. ( A i^i RR ) ( y + 1 ) e. ( A i^i RR ) ) ) )
29		nntopi.n	. . . . . . 7 |- N = |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) }
30		intss1 3948	. . . . . . 7 |- ( ( A i^i RR ) e. { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } -> |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } C_ ( A i^i RR ) )
31	29, 30	eqsstrid 3274	. . . . . 6 |- ( ( A i^i RR ) e. { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } -> N C_ ( A i^i RR ) )
32	28, 31	biimtrrdi 164	. . . . 5 |- ( ( A i^i RR ) e. _V -> ( ( 1 e. ( A i^i RR ) /\ A. y e. ( A i^i RR ) ( y + 1 ) e. ( A i^i RR ) ) -> N C_ ( A i^i RR ) ) )
33	23, 32	ax-mp 5	. . . 4 |- ( ( 1 e. ( A i^i RR ) /\ A. y e. ( A i^i RR ) ( y + 1 ) e. ( A i^i RR ) ) -> N C_ ( A i^i RR ) )
34	7, 19, 33	syl2an 289	. . 3 |- ( ( 1 e. A /\ A. y e. A ( y + 1 ) e. A ) -> N C_ ( A i^i RR ) )
35	34, 8	sstrdi 3240	. 2 |- ( ( 1 e. A /\ A. y e. A ( y + 1 ) e. A ) -> N C_ A )
36	3, 35	sylan2br 288	1 |- ( ( 1 e. A /\ A. z e. A ( z + 1 ) e. A ) -> N C_ A )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1398   e. wcel 2202   {cab 2217   A.wral 2511   _Vcvv 2803   i^i cin 3200   C_ wss 3201   |^|cint 3933  (class class class)co 6028   CCcc 8090   RRcr 8091   1c1 8093   + caddc 8095

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 2204  ax-14 2205  ax-ext 2213  ax-coll 4209  ax-sep 4212  ax-nul 4220  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641  ax-iinf 4692

This theorem depends on definitions:  df-bi 117  df-dc 843  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-ral 2516  df-rex 2517  df-reu 2518  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-iun 3977  df-br 4094  df-opab 4156  df-mpt 4157  df-tr 4193  df-eprel 4392  df-id 4396  df-po 4399  df-iso 4400  df-iord 4469  df-on 4471  df-suc 4474  df-iom 4695  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-ov 6031  df-oprab 6032  df-mpo 6033  df-1st 6312  df-2nd 6313  df-recs 6514  df-irdg 6579  df-1o 6625  df-2o 6626  df-oadd 6629  df-omul 6630  df-er 6745  df-ec 6747  df-qs 6751  df-ni 7584  df-pli 7585  df-mi 7586  df-lti 7587  df-plpq 7624  df-mpq 7625  df-enq 7627  df-nqqs 7628  df-plqqs 7629  df-mqqs 7630  df-1nqqs 7631  df-rq 7632  df-ltnqqs 7633  df-enq0 7704  df-nq0 7705  df-0nq0 7706  df-plq0 7707  df-mq0 7708  df-inp 7746  df-i1p 7747  df-iplp 7748  df-enr 8006  df-nr 8007  df-plr 8008  df-0r 8011  df-1r 8012  df-c 8098  df-1 8100  df-r 8102  df-add 8103

This theorem is referenced by:  nnindnn  8173