Theorem pjthlem11 9167

Description: Lemma for pjth 9171.

Hypotheses

Ref	Expression
pjthlem9.1	|- A e. H~
pjthlem9.2	|- B e. H~
pjthlem9.3	|- D e. H~
pjthlem9.4	|- R = (1 / (D .ih D))
pjthlem9.5	|- S = (R x. (C .ih D))
pjthlem9.6	|- C = (A -h B)

Assertion

Ref	Expression
pjthlem11	|- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> (C .ih D) = 0)

Proof of Theorem pjthlem11

Step	Hyp	Ref	Expression
1		pjthlem9.3	. . . . . . 7 |- D e. H~
2		pjthlem9.4	. . . . . . 7 |- R = (1 / (D .ih D))
3	1, 2	pjthlem3 9159	. . . . . 6 |- (D =/= 0h -> 0 < R)
4	1, 2	pjthlem2 9158	. . . . . . . . 9 |- (D =/= 0h -> R e. RR)
5		0re 5420	. . . . . . . . 9 |- 0 e. RR
6	4, 5	jctir 293	. . . . . . . 8 |- (D =/= 0h -> (R e. RR /\ 0 e. RR))
7		lttri2t 5493	. . . . . . . . 9 |- ((R e. RR /\ 0 e. RR) -> (R =/= 0 <-> (R < 0 \/ 0 < R)))
8		df-ne 1584	. . . . . . . . 9 |- (R =/= 0 <-> -. R = 0)
9	7, 8	syl5bbr 533	. . . . . . . 8 |- ((R e. RR /\ 0 e. RR) -> (-. R = 0 <-> (R < 0 \/ 0 < R)))
10	6, 9	syl 10	. . . . . . 7 |- (D =/= 0h -> (-. R = 0 <-> (R < 0 \/ 0 < R)))
11		olc 268	. . . . . . 7 |- (0 < R -> (R < 0 \/ 0 < R))
12	10, 11	syl5bir 210	. . . . . 6 |- (D =/= 0h -> (0 < R -> -. R = 0))
13	3, 12	mpd 26	. . . . 5 |- (D =/= 0h -> -. R = 0)
14	13	adantr 389	. . . 4 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> -. R = 0)
15		pjthlem9.1	. . . . . . 7 |- A e. H~
16		pjthlem9.2	. . . . . . 7 |- B e. H~
17		pjthlem9.5	. . . . . . 7 |- S = (R x. (C .ih D))
18		pjthlem9.6	. . . . . . 7 |- C = (A -h B)
19	15, 16, 1, 2, 17, 18	pjthlem10 9166	. . . . . 6 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> (R x. ((abs` (C .ih D))^2)) = 0)
20	4	recnd 5295	. . . . . . . 8 |- (D =/= 0h -> R e. CC)
21	15, 16	hvsubcl 8830	. . . . . . . . . . . . . 14 |- (A -h B) e. H~
22	18, 21	eqeltr 1541	. . . . . . . . . . . . 13 |- C e. H~
23	22, 1	hicl 8887	. . . . . . . . . . . 12 |- (C .ih D) e. CC
24	23	abscl 6782	. . . . . . . . . . 11 |- (abs` (C .ih D)) e. RR
25	24	resqcl 6562	. . . . . . . . . 10 |- ((abs` (C .ih D))^2) e. RR
26	25	recn 5294	. . . . . . . . 9 |- ((abs` (C .ih D))^2) e. CC
27		mul0ort 5673	. . . . . . . . 9 |- ((R e. CC /\ ((abs` (C .ih D))^2) e. CC) -> ((R x. ((abs` (C .ih D))^2)) = 0 <-> (R = 0 \/ ((abs` (C .ih D))^2) = 0)))
28	26, 27	mpan2 695	. . . . . . . 8 |- (R e. CC -> ((R x. ((abs` (C .ih D))^2)) = 0 <-> (R = 0 \/ ((abs` (C .ih D))^2) = 0)))
29	20, 28	syl 10	. . . . . . 7 |- (D =/= 0h -> ((R x. ((abs` (C .ih D))^2)) = 0 <-> (R = 0 \/ ((abs` (C .ih D))^2) = 0)))
30	29	adantr 389	. . . . . 6 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> ((R x. ((abs` (C .ih D))^2)) = 0 <-> (R = 0 \/ ((abs` (C .ih D))^2) = 0)))
31	19, 30	mpbid 195	. . . . 5 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> (R = 0 \/ ((abs` (C .ih D))^2) = 0))
32	31	ord 232	. . . 4 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> (-. R = 0 -> ((abs` (C .ih D))^2) = 0))
33	14, 32	mpd 26	. . 3 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> ((abs` (C .ih D))^2) = 0)
34	24	recn 5294	. . . 4 |- (abs` (C .ih D)) e. CC
35	34	sq00 6554	. . 3 |- (((abs` (C .ih D))^2) = 0 <-> (abs` (C .ih D)) = 0)
36	33, 35	sylib 198	. 2 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> (abs` (C .ih D)) = 0)
37	23	abs00 6785	. 2 |- ((abs` (C .ih D)) = 0 <-> (C .ih D) = 0)
38	36, 37	sylib 198	1 |- ((D =/= 0h /\ (normh` (B -h A)) <_ (normh` ((B +h (S .h D)) -h A))) -> (C .ih D) = 0)

Syntax hints:  -. wn 2   -> wi 3   <-> wb 146   \/ wo 222   /\ wa 223   = wceq 954   e. wcel 956   =/= wne 1582   class class class wbr 2614  ` cfv 3177  (class class class)co 3954  CCcc 5212  RRcr 5213  0cc0 5214  1c1 5215   x. cmul 5219   / cdiv 5274   <_ cle 5275   < clt 5466  2c2 5916  ^cexp 6508  abscabs 6689  H~chil 8727   +h cva 8728   .h csm 8729  0hc0v 8730   -h cmv 8731   .ih csp 8732  normhcno 8733

This theorem is referenced by:  pjthlem12 9168

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 960  ax-gen 961  ax-8 962  ax-9 963  ax-10 964  ax-11 965  ax-12 966  ax-13 967  ax-14 968  ax-17 969  ax-4 971  ax-5o 973  ax-6o 976  ax-9o 1121  ax-10o 1138  ax-16 1208  ax-11o 1216  ax-ext 1457  ax-rep 2688  ax-sep 2698  ax-nul 2705  ax-pow 2737  ax-pr 2774  ax-un 2861  ax-inf2 4605  ax-hfvadd 8809  ax-hvcom 8810  ax-hvass 8811  ax-hv0cl 8812  ax-hfvmul 8814  ax-hvmulid 8815  ax-hvmulass 8816  ax-hvdistr1 8817  ax-hvmul0 8819  ax-hfi 8885  ax-his1 8888  ax-his2 8889  ax-his3 8890  ax-his4 8891

This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-3or 775  df-3an 776  df-ex 979  df-sb 1170  df-eu 1380  df-mo 1381  df-clab 1462  df-cleq 1467  df-clel 1470  df-ne 1584  df-nel 1585  df-ral 1646  df-rex 1647  df-reu 1648  df-rab 1649  df-v 1808  df-sbc 1938  df-csb 1998  df-dif 2045  df-un 2046  df-in 2047  df-ss 2049  df-pss 2051  df-nul 2277  df-if 2358  df-pw 2398  df-sn 2408  df-pr 2409  df-tp 2411  df-op 2412  df-uni 2499  df-int 2529  df-iun 2563  df-br 2615  df-opab 2662  df-tr 2676  df-eprel 2827  df-id 2830  df-po 2835  df-so 2845  df-fr 2912  df-we 2929  df-ord 2946  df-on 2947  df-lim 2948  df-suc 2949  df-om 3127  df-xp 3179  df-rel 3180  df-cnv 3181  df-co 3182  df-dm 3183  df-rn 3184  df-res 3185  df-ima 3186  df-fun 3187  df-fn 3188  df-f 3189  df-f1 3190  df-fo 3191  df-f1o 3192  df-fv 3193  df-rdg 3923  df-opr 3956  df-oprab 3957  df-1st 4069  df-2nd 4070  df-1o 4123  df-oadd 4125  df-omul 4126  df-er 4251  df-ec 4253  df-qs 4256  df-en 4357  df-dom 4358  df-sdom 4359  df-sup 4554  df-ni 4980  df-pli 4981  df-mi 4982  df-lti 4983  df-plpq 5015  df-mpq 5016  df-enq 5017  df-nq 5018  df-plq 5019  df-mq 5020  df-rq 5021  df-ltq 5022  df-1q 5023  df-np 5066  df-1p 5067  df-plp 5068  df-mp 5069  df-ltp 5070  df-plpr 5144  df-mpr 5145  df-enr 5146  df-nr 5147  df-plr 5148  df-mr 5149  df-ltr 5150  df-0r 5151  df-1r 5152  df-m1r 5153  df-c 5220  df-0 5221  df-1 5222  df-i 5223  df-r 5224  df-plus 5225  df-mul 5226  df-lt 5227  df-sub 5336  df-neg 5338  df-pnf 5467  df-mnf 5468  df-xr 5469  df-ltxr 5470  df-le 5471  df-div 5680  df-n 5881  df-2 5925  df-n0 6055  df-z 6091  df-seq1 6253  df-exp 6509  df-sqr 6608  df-re 6690  df-im 6691  df-cj 6692  df-abs 6693  df-hnorm 8776  df-hvsub 8779

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