Theorem axarch 8078

Description: Archimedean axiom. The Archimedean property is more naturally stated once we have defined NN. Unless we find another way to state it, we'll just use the right hand side of dfnn2 9112 in stating what we mean by "natural number" in the context of this axiom.

This construction-dependent theorem should not be referenced directly; instead, use ax-arch 8118. (Contributed by Jim Kingdon, 22-Apr-2020.) (New usage is discouraged.)

Assertion

Ref	Expression
axarch	|- ( A e. RR -> E. n e. |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } A <RR n )

Distinct variable group:   A, n, x, y

Proof of Theorem axarch

Dummy variables l u w z are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		elreal 8015	. . 3 |- ( A e. RR <-> E. z e. R. <. z , 0R >. = A )
2	1	biimpi 120	. 2 |- ( A e. RR -> E. z e. R. <. z , 0R >. = A )
3		archsr 7969	. . . 4 |- ( z e. R. -> E. w e. N. z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R )
4	3	ad2antrl 490	. . 3 |- ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) -> E. w e. N. z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R )
5		simplrr 536	. . . . 5 |- ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) -> <. z , 0R >. = A )
6		simprr 531	. . . . . 6 |- ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) -> z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R )
7		ltresr 8026	. . . . . 6 |- ( <. z , 0R >. <RR <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. <-> z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R )
8	6, 7	sylibr 134	. . . . 5 |- ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) -> <. z , 0R >. <RR <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. )
9	5, 8	eqbrtrrd 4107	. . . 4 |- ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) -> A <RR <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. )
10		pitonn 8035	. . . . . 6 |- ( w e. N. -> <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. e. |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } )
11	10	ad2antrl 490	. . . . 5 |- ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) -> <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. e. |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } )
12		simpr 110	. . . . . 6 |- ( ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) /\ n = <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. ) -> n = <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. )
13	12	breq2d 4095	. . . . 5 |- ( ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) /\ n = <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. ) -> ( A <RR n <-> A <RR <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. ) )
14	11, 13	rspcedv 2911	. . . 4 |- ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) -> ( A <RR <. [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R , 0R >. -> E. n e. |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } A <RR n ) )
15	9, 14	mpd 13	. . 3 |- ( ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) /\ ( w e. N. /\ z <R [ <. ( <. { l | l <Q [ <. w , 1o >. ] ~Q } , { u | [ <. w , 1o >. ] ~Q <Q u } >. +P. 1P ) , 1P >. ] ~R ) ) -> E. n e. |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } A <RR n )
16	4, 15	rexlimddv 2653	. 2 |- ( ( A e. RR /\ ( z e. R. /\ <. z , 0R >. = A ) ) -> E. n e. |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } A <RR n )
17	2, 16	rexlimddv 2653	1 |- ( A e. RR -> E. n e. |^| { x | ( 1 e. x /\ A. y e. x ( y + 1 ) e. x ) } A <RR n )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1395   e. wcel 2200   {cab 2215   A.wral 2508   E.wrex 2509   <.cop 3669   |^|cint 3923   class class class wbr 4083  (class class class)co 6001   1oc1o 6555   [cec 6678   N.cnpi 7459   ~Q ceq 7466   <Q cltq 7472   1Pc1p 7479   +P. cpp 7480   ~R cer 7483   R.cnr 7484   0Rc0r 7485   <R cltr 7490   RRcr 7998   1c1 8000   + caddc 8002   <RR cltrr 8003

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 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-coll 4199  ax-sep 4202  ax-nul 4210  ax-pow 4258  ax-pr 4293  ax-un 4524  ax-setind 4629  ax-iinf 4680

This theorem depends on definitions:  df-bi 117  df-dc 840  df-3or 1003  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-ral 2513  df-rex 2514  df-reu 2515  df-rab 2517  df-v 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-int 3924  df-iun 3967  df-br 4084  df-opab 4146  df-mpt 4147  df-tr 4183  df-eprel 4380  df-id 4384  df-po 4387  df-iso 4388  df-iord 4457  df-on 4459  df-suc 4462  df-iom 4683  df-xp 4725  df-rel 4726  df-cnv 4727  df-co 4728  df-dm 4729  df-rn 4730  df-res 4731  df-ima 4732  df-iota 5278  df-fun 5320  df-fn 5321  df-f 5322  df-f1 5323  df-fo 5324  df-f1o 5325  df-fv 5326  df-ov 6004  df-oprab 6005  df-mpo 6006  df-1st 6286  df-2nd 6287  df-recs 6451  df-irdg 6516  df-1o 6562  df-2o 6563  df-oadd 6566  df-omul 6567  df-er 6680  df-ec 6682  df-qs 6686  df-ni 7491  df-pli 7492  df-mi 7493  df-lti 7494  df-plpq 7531  df-mpq 7532  df-enq 7534  df-nqqs 7535  df-plqqs 7536  df-mqqs 7537  df-1nqqs 7538  df-rq 7539  df-ltnqqs 7540  df-enq0 7611  df-nq0 7612  df-0nq0 7613  df-plq0 7614  df-mq0 7615  df-inp 7653  df-i1p 7654  df-iplp 7655  df-iltp 7657  df-enr 7913  df-nr 7914  df-plr 7915  df-ltr 7917  df-0r 7918  df-1r 7919  df-c 8005  df-1 8007  df-r 8009  df-add 8010  df-lt 8012

This theorem is referenced by: (None)