Theorem modaddmodup 10802

Description: The sum of an integer modulo a positive integer and another integer minus the positive integer equals the sum of the two integers modulo the positive integer if the other integer is in the upper part of the range between 0 and the positive integer. (Contributed by AV, 30-Oct-2018.)

Assertion

Ref	Expression
modaddmodup	|- ( ( A e. ZZ /\ M e. NN ) -> ( B e. ( ( M - ( A mod M ) )..^ M ) -> ( ( B + ( A mod M ) ) - M ) = ( ( B + A ) mod M ) ) )

Proof of Theorem modaddmodup

Step	Hyp	Ref	Expression
1		elfzoelz 10532	. . . . . . 7 |- ( B e. ( ( M - ( A mod M ) )..^ M ) -> B e. ZZ )
2	1	adantr 276	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> B e. ZZ )
3		zmodcl 10759	. . . . . . . 8 |- ( ( A e. ZZ /\ M e. NN ) -> ( A mod M ) e. NN0 )
4	3	adantl 277	. . . . . . 7 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( A mod M ) e. NN0 )
5	4	nn0zd 9745	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( A mod M ) e. ZZ )
6	2, 5	zaddcld 9751	. . . . 5 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( B + ( A mod M ) ) e. ZZ )
7		zq 10005	. . . . 5 |- ( ( B + ( A mod M ) ) e. ZZ -> ( B + ( A mod M ) ) e. QQ )
8	6, 7	syl 14	. . . 4 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( B + ( A mod M ) ) e. QQ )
9		simprr 537	. . . . 5 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> M e. NN )
10		nnq 10012	. . . . 5 |- ( M e. NN -> M e. QQ )
11	9, 10	syl 14	. . . 4 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> M e. QQ )
12	9	nngt0d 9327	. . . 4 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> 0 < M )
13		elfzole1 10541	. . . . . 6 |- ( B e. ( ( M - ( A mod M ) )..^ M ) -> ( M - ( A mod M ) ) <_ B )
14	13	adantr 276	. . . . 5 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( M - ( A mod M ) ) <_ B )
15	9	nnred 9296	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> M e. RR )
16	3	nn0red 9600	. . . . . . 7 |- ( ( A e. ZZ /\ M e. NN ) -> ( A mod M ) e. RR )
17	16	adantl 277	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( A mod M ) e. RR )
18	1	zred 9747	. . . . . . 7 |- ( B e. ( ( M - ( A mod M ) )..^ M ) -> B e. RR )
19	18	adantr 276	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> B e. RR )
20	15, 17, 19	lesubaddd 8860	. . . . 5 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( ( M - ( A mod M ) ) <_ B <-> M <_ ( B + ( A mod M ) ) ) )
21	14, 20	mpbid 147	. . . 4 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> M <_ ( B + ( A mod M ) ) )
22		elfzolt2 10542	. . . . . . 7 |- ( B e. ( ( M - ( A mod M ) )..^ M ) -> B < M )
23	22	adantr 276	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> B < M )
24		zq 10005	. . . . . . . 8 |- ( A e. ZZ -> A e. QQ )
25	24	ad2antrl 494	. . . . . . 7 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> A e. QQ )
26		modqlt 10748	. . . . . . 7 |- ( ( A e. QQ /\ M e. QQ /\ 0 < M ) -> ( A mod M ) < M )
27	25, 11, 12, 26	syl3anc 1278	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( A mod M ) < M )
28	19, 17, 15, 15, 23, 27	lt2addd 8885	. . . . 5 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( B + ( A mod M ) ) < ( M + M ) )
29	9	nncnd 9297	. . . . . 6 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> M e. CC )
30	29	2timesd 9527	. . . . 5 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( 2 x. M ) = ( M + M ) )
31	28, 30	breqtrrd 4153	. . . 4 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( B + ( A mod M ) ) < ( 2 x. M ) )
32		q2submod 10800	. . . 4 |- ( ( ( ( B + ( A mod M ) ) e. QQ /\ M e. QQ /\ 0 < M ) /\ ( M <_ ( B + ( A mod M ) ) /\ ( B + ( A mod M ) ) < ( 2 x. M ) ) ) -> ( ( B + ( A mod M ) ) mod M ) = ( ( B + ( A mod M ) ) - M ) )
33	8, 11, 12, 21, 31, 32	syl32anc 1286	. . 3 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( ( B + ( A mod M ) ) mod M ) = ( ( B + ( A mod M ) ) - M ) )
34		zq 10005	. . . . 5 |- ( B e. ZZ -> B e. QQ )
35	2, 34	syl 14	. . . 4 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> B e. QQ )
36		modqadd2mod 10789	. . . 4 |- ( ( ( A e. QQ /\ B e. QQ ) /\ ( M e. QQ /\ 0 < M ) ) -> ( ( B + ( A mod M ) ) mod M ) = ( ( B + A ) mod M ) )
37	25, 35, 11, 12, 36	syl22anc 1279	. . 3 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( ( B + ( A mod M ) ) mod M ) = ( ( B + A ) mod M ) )
38	33, 37	eqtr3d 2273	. 2 |- ( ( B e. ( ( M - ( A mod M ) )..^ M ) /\ ( A e. ZZ /\ M e. NN ) ) -> ( ( B + ( A mod M ) ) - M ) = ( ( B + A ) mod M ) )
39	38	expcom 116	1 |- ( ( A e. ZZ /\ M e. NN ) -> ( B e. ( ( M - ( A mod M ) )..^ M ) -> ( ( B + ( A mod M ) ) - M ) = ( ( B + A ) mod M ) ) )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1402   e. wcel 2209   class class class wbr 4125  (class class class)co 6075   RRcr 8168   0cc0 8169   + caddc 8172   x. cmul 8174   < clt 8350   <_ cle 8351   - cmin 8487   NNcn 9283   2c2 9334   NN0cn0 9542   ZZcz 9623   QQcq 9998  ..^cfzo 10527   mod cmo 10737

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 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4244  ax-pow 4306  ax-pr 4341  ax-un 4573  ax-setind 4679  ax-cnex 8260  ax-resscn 8261  ax-1cn 8262  ax-1re 8263  ax-icn 8264  ax-addcl 8265  ax-addrcl 8266  ax-mulcl 8267  ax-mulrcl 8268  ax-addcom 8269  ax-mulcom 8270  ax-addass 8271  ax-mulass 8272  ax-distr 8273  ax-i2m1 8274  ax-0lt1 8275  ax-1rid 8276  ax-0id 8277  ax-rnegex 8278  ax-precex 8279  ax-cnre 8280  ax-pre-ltirr 8281  ax-pre-ltwlin 8282  ax-pre-lttrn 8283  ax-pre-apti 8284  ax-pre-ltadd 8285  ax-pre-mulgt0 8286  ax-pre-mulext 8287  ax-arch 8288

This theorem depends on definitions:  df-bi 117  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-int 3966  df-iun 4009  df-br 4126  df-opab 4188  df-mpt 4189  df-id 4433  df-po 4436  df-iso 4437  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-res 4781  df-ima 4782  df-iota 5332  df-fun 5374  df-fn 5375  df-f 5376  df-fv 5380  df-riota 6028  df-ov 6078  df-oprab 6079  df-mpo 6080  df-1st 6364  df-2nd 6365  df-pnf 8352  df-mnf 8353  df-xr 8354  df-ltxr 8355  df-le 8356  df-sub 8489  df-neg 8490  df-reap 8893  df-ap 8900  df-div 8993  df-inn 9284  df-2 9342  df-n0 9543  df-z 9624  df-uz 9901  df-q 9999  df-rp 10034  df-fz 10391  df-fzo 10528  df-fl 10683  df-mod 10738

This theorem is referenced by: (None)