Theorem eluzgtdifelfzo 10542

Description: Membership of the difference of integers in a half-open range of nonnegative integers. (Contributed by Alexander van der Vekens, 17-Sep-2018.)

Assertion

Ref	Expression
eluzgtdifelfzo	|- ( ( A e. ZZ /\ B e. ZZ ) -> ( ( N e. ( ZZ>= ` A ) /\ B < A ) -> ( N - A ) e. ( 0..^ ( N - B ) ) ) )

Proof of Theorem eluzgtdifelfzo

Step	Hyp	Ref	Expression
1		simpl 109	. . . . 5 |- ( ( N e. ( ZZ>= ` A ) /\ B < A ) -> N e. ( ZZ>= ` A ) )
2	1	adantl 277	. . . 4 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> N e. ( ZZ>= ` A ) )
3		simpl 109	. . . . . 6 |- ( ( A e. ZZ /\ B e. ZZ ) -> A e. ZZ )
4	3	adantr 276	. . . . 5 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> A e. ZZ )
5		eluzelz 9863	. . . . . . . 8 |- ( N e. ( ZZ>= ` A ) -> N e. ZZ )
6	5	ad2antrr 488	. . . . . . 7 |- ( ( ( N e. ( ZZ>= ` A ) /\ B < A ) /\ ( A e. ZZ /\ B e. ZZ ) ) -> N e. ZZ )
7		simprr 533	. . . . . . 7 |- ( ( ( N e. ( ZZ>= ` A ) /\ B < A ) /\ ( A e. ZZ /\ B e. ZZ ) ) -> B e. ZZ )
8	6, 7	zsubcld 9705	. . . . . 6 |- ( ( ( N e. ( ZZ>= ` A ) /\ B < A ) /\ ( A e. ZZ /\ B e. ZZ ) ) -> ( N - B ) e. ZZ )
9	8	ancoms 268	. . . . 5 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> ( N - B ) e. ZZ )
10	4, 9	zaddcld 9704	. . . 4 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> ( A + ( N - B ) ) e. ZZ )
11		zre 9581	. . . . . . . . 9 |- ( B e. ZZ -> B e. RR )
12		zre 9581	. . . . . . . . 9 |- ( A e. ZZ -> A e. RR )
13		posdif 8729	. . . . . . . . . 10 |- ( ( B e. RR /\ A e. RR ) -> ( B < A <-> 0 < ( A - B ) ) )
14	13	biimpd 144	. . . . . . . . 9 |- ( ( B e. RR /\ A e. RR ) -> ( B < A -> 0 < ( A - B ) ) )
15	11, 12, 14	syl2anr 290	. . . . . . . 8 |- ( ( A e. ZZ /\ B e. ZZ ) -> ( B < A -> 0 < ( A - B ) ) )
16	15	adantld 278	. . . . . . 7 |- ( ( A e. ZZ /\ B e. ZZ ) -> ( ( N e. ( ZZ>= ` A ) /\ B < A ) -> 0 < ( A - B ) ) )
17	16	imp 124	. . . . . 6 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> 0 < ( A - B ) )
18		resubcl 8537	. . . . . . . . 9 |- ( ( A e. RR /\ B e. RR ) -> ( A - B ) e. RR )
19	12, 11, 18	syl2an 289	. . . . . . . 8 |- ( ( A e. ZZ /\ B e. ZZ ) -> ( A - B ) e. RR )
20	19	adantr 276	. . . . . . 7 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> ( A - B ) e. RR )
21		eluzelre 9864	. . . . . . . 8 |- ( N e. ( ZZ>= ` A ) -> N e. RR )
22	21	ad2antrl 490	. . . . . . 7 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> N e. RR )
23	20, 22	ltaddposd 8803	. . . . . 6 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> ( 0 < ( A - B ) <-> N < ( N + ( A - B ) ) ) )
24	17, 23	mpbid 147	. . . . 5 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> N < ( N + ( A - B ) ) )
25		zcn 9582	. . . . . . 7 |- ( A e. ZZ -> A e. CC )
26	25	ad2antrr 488	. . . . . 6 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> A e. CC )
27		eluzelcn 9865	. . . . . . 7 |- ( N e. ( ZZ>= ` A ) -> N e. CC )
28	27	ad2antrl 490	. . . . . 6 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> N e. CC )
29		zcn 9582	. . . . . . . 8 |- ( B e. ZZ -> B e. CC )
30	29	adantl 277	. . . . . . 7 |- ( ( A e. ZZ /\ B e. ZZ ) -> B e. CC )
31	30	adantr 276	. . . . . 6 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> B e. CC )
32		addsub12 8486	. . . . . . 7 |- ( ( A e. CC /\ N e. CC /\ B e. CC ) -> ( A + ( N - B ) ) = ( N + ( A - B ) ) )
33	32	breq2d 4121	. . . . . 6 |- ( ( A e. CC /\ N e. CC /\ B e. CC ) -> ( N < ( A + ( N - B ) ) <-> N < ( N + ( A - B ) ) ) )
34	26, 28, 31, 33	syl3anc 1274	. . . . 5 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> ( N < ( A + ( N - B ) ) <-> N < ( N + ( A - B ) ) ) )
35	24, 34	mpbird 167	. . . 4 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> N < ( A + ( N - B ) ) )
36		elfzo2 10484	. . . 4 |- ( N e. ( A..^ ( A + ( N - B ) ) ) <-> ( N e. ( ZZ>= ` A ) /\ ( A + ( N - B ) ) e. ZZ /\ N < ( A + ( N - B ) ) ) )
37	2, 10, 35, 36	syl3anbrc 1208	. . 3 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> N e. ( A..^ ( A + ( N - B ) ) ) )
38		fzosubel3 10541	. . 3 |- ( ( N e. ( A..^ ( A + ( N - B ) ) ) /\ ( N - B ) e. ZZ ) -> ( N - A ) e. ( 0..^ ( N - B ) ) )
39	37, 9, 38	syl2anc 411	. 2 |- ( ( ( A e. ZZ /\ B e. ZZ ) /\ ( N e. ( ZZ>= ` A ) /\ B < A ) ) -> ( N - A ) e. ( 0..^ ( N - B ) ) )
40	39	ex 115	1 |- ( ( A e. ZZ /\ B e. ZZ ) -> ( ( N e. ( ZZ>= ` A ) /\ B < A ) -> ( N - A ) e. ( 0..^ ( N - B ) ) ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   /\ w3a 1005   e. wcel 2203   class class class wbr 4109   ` cfv 5352  (class class class)co 6050   CCcc 8125   RRcr 8126   0cc0 8127   + caddc 8130   < clt 8308   - cmin 8444   ZZcz 9577   ZZ>=cuz 9853  ..^cfzo 10476

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 2205  ax-14 2206  ax-ext 2214  ax-sep 4228  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-setind 4659  ax-cnex 8218  ax-resscn 8219  ax-1cn 8220  ax-1re 8221  ax-icn 8222  ax-addcl 8223  ax-addrcl 8224  ax-mulcl 8225  ax-addcom 8227  ax-addass 8229  ax-distr 8231  ax-i2m1 8232  ax-0lt1 8233  ax-0id 8235  ax-rnegex 8236  ax-cnre 8238  ax-pre-ltirr 8239  ax-pre-ltwlin 8240  ax-pre-lttrn 8241  ax-pre-ltadd 8243

This theorem depends on definitions:  df-bi 117  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-nel 2508  df-ral 2525  df-rex 2526  df-reu 2527  df-rab 2529  df-v 2815  df-sbc 3043  df-csb 3139  df-dif 3213  df-un 3215  df-in 3217  df-ss 3224  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-int 3950  df-iun 3993  df-br 4110  df-opab 4172  df-mpt 4173  df-id 4414  df-xp 4755  df-rel 4756  df-cnv 4757  df-co 4758  df-dm 4759  df-rn 4760  df-res 4761  df-ima 4762  df-iota 5312  df-fun 5354  df-fn 5355  df-f 5356  df-fv 5360  df-riota 6003  df-ov 6053  df-oprab 6054  df-mpo 6055  df-1st 6334  df-2nd 6335  df-pnf 8310  df-mnf 8311  df-xr 8312  df-ltxr 8313  df-le 8314  df-sub 8446  df-neg 8447  df-inn 9238  df-n0 9497  df-z 9578  df-uz 9854  df-fz 10343  df-fzo 10477

This theorem is referenced by:  ige2m2fzo  10543