Theorem fzo1fzo0n0 9522

Description: An integer between 1 and an upper bound of a half-open integer range is not 0 and between 0 and the upper bound of the half-open integer range. (Contributed by Alexander van der Vekens, 21-Mar-2018.)

Assertion

Ref	Expression
fzo1fzo0n0	|- ( K e. ( 1..^ N ) <-> ( K e. ( 0..^ N ) /\ K =/= 0 ) )

Proof of Theorem fzo1fzo0n0

Step	Hyp	Ref	Expression
1		elfzo2 9489	. . 3 |- ( K e. ( 1..^ N ) <-> ( K e. ( ZZ>= ` 1 ) /\ N e. ZZ /\ K < N ) )
2		elnnuz 8987	. . . . . . 7 |- ( K e. NN <-> K e. ( ZZ>= ` 1 ) )
3		nnnn0 8613	. . . . . . . . . . 11 |- ( K e. NN -> K e. NN0 )
4	3	adantr 270	. . . . . . . . . 10 |- ( ( K e. NN /\ N e. ZZ ) -> K e. NN0 )
5	4	adantr 270	. . . . . . . . 9 |- ( ( ( K e. NN /\ N e. ZZ ) /\ K < N ) -> K e. NN0 )
6		nngt0 8382	. . . . . . . . . . 11 |- ( K e. NN -> 0 < K )
7		0red 7433	. . . . . . . . . . . . . . 15 |- ( ( N e. ZZ /\ K e. NN ) -> 0 e. RR )
8		nnre 8364	. . . . . . . . . . . . . . . 16 |- ( K e. NN -> K e. RR )
9	8	adantl 271	. . . . . . . . . . . . . . 15 |- ( ( N e. ZZ /\ K e. NN ) -> K e. RR )
10		zre 8687	. . . . . . . . . . . . . . . 16 |- ( N e. ZZ -> N e. RR )
11	10	adantr 270	. . . . . . . . . . . . . . 15 |- ( ( N e. ZZ /\ K e. NN ) -> N e. RR )
12		lttr 7503	. . . . . . . . . . . . . . 15 |- ( ( 0 e. RR /\ K e. RR /\ N e. RR ) -> ( ( 0 < K /\ K < N ) -> 0 < N ) )
13	7, 9, 11, 12	syl3anc 1172	. . . . . . . . . . . . . 14 |- ( ( N e. ZZ /\ K e. NN ) -> ( ( 0 < K /\ K < N ) -> 0 < N ) )
14		elnnz 8693	. . . . . . . . . . . . . . . 16 |- ( N e. NN <-> ( N e. ZZ /\ 0 < N ) )
15	14	simplbi2 377	. . . . . . . . . . . . . . 15 |- ( N e. ZZ -> ( 0 < N -> N e. NN ) )
16	15	adantr 270	. . . . . . . . . . . . . 14 |- ( ( N e. ZZ /\ K e. NN ) -> ( 0 < N -> N e. NN ) )
17	13, 16	syld 44	. . . . . . . . . . . . 13 |- ( ( N e. ZZ /\ K e. NN ) -> ( ( 0 < K /\ K < N ) -> N e. NN ) )
18	17	exp4b 359	. . . . . . . . . . . 12 |- ( N e. ZZ -> ( K e. NN -> ( 0 < K -> ( K < N -> N e. NN ) ) ) )
19	18	com13 79	. . . . . . . . . . 11 |- ( 0 < K -> ( K e. NN -> ( N e. ZZ -> ( K < N -> N e. NN ) ) ) )
20	6, 19	mpcom 36	. . . . . . . . . 10 |- ( K e. NN -> ( N e. ZZ -> ( K < N -> N e. NN ) ) )
21	20	imp31 252	. . . . . . . . 9 |- ( ( ( K e. NN /\ N e. ZZ ) /\ K < N ) -> N e. NN )
22		simpr 108	. . . . . . . . 9 |- ( ( ( K e. NN /\ N e. ZZ ) /\ K < N ) -> K < N )
23	5, 21, 22	3jca 1121	. . . . . . . 8 |- ( ( ( K e. NN /\ N e. ZZ ) /\ K < N ) -> ( K e. NN0 /\ N e. NN /\ K < N ) )
24	23	exp31 356	. . . . . . 7 |- ( K e. NN -> ( N e. ZZ -> ( K < N -> ( K e. NN0 /\ N e. NN /\ K < N ) ) ) )
25	2, 24	sylbir 133	. . . . . 6 |- ( K e. ( ZZ>= ` 1 ) -> ( N e. ZZ -> ( K < N -> ( K e. NN0 /\ N e. NN /\ K < N ) ) ) )
26	25	3imp 1135	. . . . 5 |- ( ( K e. ( ZZ>= ` 1 ) /\ N e. ZZ /\ K < N ) -> ( K e. NN0 /\ N e. NN /\ K < N ) )
27		elfzo0 9521	. . . . 5 |- ( K e. ( 0..^ N ) <-> ( K e. NN0 /\ N e. NN /\ K < N ) )
28	26, 27	sylibr 132	. . . 4 |- ( ( K e. ( ZZ>= ` 1 ) /\ N e. ZZ /\ K < N ) -> K e. ( 0..^ N ) )
29		nnne0 8385	. . . . . 6 |- ( K e. NN -> K =/= 0 )
30	2, 29	sylbir 133	. . . . 5 |- ( K e. ( ZZ>= ` 1 ) -> K =/= 0 )
31	30	3ad2ant1 962	. . . 4 |- ( ( K e. ( ZZ>= ` 1 ) /\ N e. ZZ /\ K < N ) -> K =/= 0 )
32	28, 31	jca 300	. . 3 |- ( ( K e. ( ZZ>= ` 1 ) /\ N e. ZZ /\ K < N ) -> ( K e. ( 0..^ N ) /\ K =/= 0 ) )
33	1, 32	sylbi 119	. 2 |- ( K e. ( 1..^ N ) -> ( K e. ( 0..^ N ) /\ K =/= 0 ) )
34		elnnne0 8620	. . . . . 6 |- ( K e. NN <-> ( K e. NN0 /\ K =/= 0 ) )
35		nnge1 8380	. . . . . 6 |- ( K e. NN -> 1 <_ K )
36	34, 35	sylbir 133	. . . . 5 |- ( ( K e. NN0 /\ K =/= 0 ) -> 1 <_ K )
37	36	3ad2antl1 1103	. . . 4 |- ( ( ( K e. NN0 /\ N e. NN /\ K < N ) /\ K =/= 0 ) -> 1 <_ K )
38		simpl3 946	. . . 4 |- ( ( ( K e. NN0 /\ N e. NN /\ K < N ) /\ K =/= 0 ) -> K < N )
39		nn0z 8703	. . . . . . . . 9 |- ( K e. NN0 -> K e. ZZ )
40	39	adantr 270	. . . . . . . 8 |- ( ( K e. NN0 /\ N e. NN ) -> K e. ZZ )
41		1zzd 8710	. . . . . . . 8 |- ( ( K e. NN0 /\ N e. NN ) -> 1 e. ZZ )
42		nnz 8702	. . . . . . . . 9 |- ( N e. NN -> N e. ZZ )
43	42	adantl 271	. . . . . . . 8 |- ( ( K e. NN0 /\ N e. NN ) -> N e. ZZ )
44	40, 41, 43	3jca 1121	. . . . . . 7 |- ( ( K e. NN0 /\ N e. NN ) -> ( K e. ZZ /\ 1 e. ZZ /\ N e. ZZ ) )
45	44	3adant3 961	. . . . . 6 |- ( ( K e. NN0 /\ N e. NN /\ K < N ) -> ( K e. ZZ /\ 1 e. ZZ /\ N e. ZZ ) )
46	45	adantr 270	. . . . 5 |- ( ( ( K e. NN0 /\ N e. NN /\ K < N ) /\ K =/= 0 ) -> ( K e. ZZ /\ 1 e. ZZ /\ N e. ZZ ) )
47		elfzo 9488	. . . . 5 |- ( ( K e. ZZ /\ 1 e. ZZ /\ N e. ZZ ) -> ( K e. ( 1..^ N ) <-> ( 1 <_ K /\ K < N ) ) )
48	46, 47	syl 14	. . . 4 |- ( ( ( K e. NN0 /\ N e. NN /\ K < N ) /\ K =/= 0 ) -> ( K e. ( 1..^ N ) <-> ( 1 <_ K /\ K < N ) ) )
49	37, 38, 48	mpbir2and 888	. . 3 |- ( ( ( K e. NN0 /\ N e. NN /\ K < N ) /\ K =/= 0 ) -> K e. ( 1..^ N ) )
50	27, 49	sylanb 278	. 2 |- ( ( K e. ( 0..^ N ) /\ K =/= 0 ) -> K e. ( 1..^ N ) )
51	33, 50	impbii 124	1 |- ( K e. ( 1..^ N ) <-> ( K e. ( 0..^ N ) /\ K =/= 0 ) )

Syntax hints:   -> wi 4   /\ wa 102   <-> wb 103   /\ w3a 922   e. wcel 1436   =/= wne 2251   class class class wbr 3820   ` cfv 4981  (class class class)co 5613   RRcr 7293   0cc0 7294   1c1 7295   < clt 7466   <_ cle 7467   NNcn 8357   NN0cn0 8606   ZZcz 8683   ZZ>=cuz 8951  ..^cfzo 9481

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-in1 577  ax-in2 578  ax-io 663  ax-5 1379  ax-7 1380  ax-gen 1381  ax-ie1 1425  ax-ie2 1426  ax-8 1438  ax-10 1439  ax-11 1440  ax-i12 1441  ax-bndl 1442  ax-4 1443  ax-13 1447  ax-14 1448  ax-17 1462  ax-i9 1466  ax-ial 1470  ax-i5r 1471  ax-ext 2067  ax-sep 3932  ax-pow 3984  ax-pr 4010  ax-un 4234  ax-setind 4326  ax-cnex 7380  ax-resscn 7381  ax-1cn 7382  ax-1re 7383  ax-icn 7384  ax-addcl 7385  ax-addrcl 7386  ax-mulcl 7387  ax-addcom 7389  ax-addass 7391  ax-distr 7393  ax-i2m1 7394  ax-0lt1 7395  ax-0id 7397  ax-rnegex 7398  ax-cnre 7400  ax-pre-ltirr 7401  ax-pre-ltwlin 7402  ax-pre-lttrn 7403  ax-pre-ltadd 7405

This theorem depends on definitions:  df-bi 115  df-3or 923  df-3an 924  df-tru 1290  df-fal 1293  df-nf 1393  df-sb 1690  df-eu 1948  df-mo 1949  df-clab 2072  df-cleq 2078  df-clel 2081  df-nfc 2214  df-ne 2252  df-nel 2347  df-ral 2360  df-rex 2361  df-reu 2362  df-rab 2364  df-v 2617  df-sbc 2830  df-csb 2923  df-dif 2990  df-un 2992  df-in 2994  df-ss 3001  df-nul 3276  df-pw 3417  df-sn 3437  df-pr 3438  df-op 3440  df-uni 3637  df-int 3672  df-iun 3715  df-br 3821  df-opab 3875  df-mpt 3876  df-id 4094  df-xp 4417  df-rel 4418  df-cnv 4419  df-co 4420  df-dm 4421  df-rn 4422  df-res 4423  df-ima 4424  df-iota 4946  df-fun 4983  df-fn 4984  df-f 4985  df-fv 4989  df-riota 5569  df-ov 5616  df-oprab 5617  df-mpt2 5618  df-1st 5868  df-2nd 5869  df-pnf 7468  df-mnf 7469  df-xr 7470  df-ltxr 7471  df-le 7472  df-sub 7599  df-neg 7600  df-inn 8358  df-n0 8607  df-z 8684  df-uz 8952  df-fz 9357  df-fzo 9482

This theorem is referenced by: (None)