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Theorem eluzsub 9934
Description: Membership in an earlier upper set of integers. (Contributed by Jeff Madsen, 2-Sep-2009.)
Assertion
Ref Expression
eluzsub |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( N - K ) e. ( ZZ>= ` M ) )
Proof of Theorem eluzsub
StepHypRef Expression
1 eluzelz 9913 . . . 4 |- ( N e. ( ZZ>= ` ( M + K ) ) -> N e. ZZ )
213ad2ant3 1051 . . 3 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> N e. ZZ )
3 simp2 1029 . . 3 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> K e. ZZ )
42, 3zsubcld 9755 . 2 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( N - K ) e. ZZ )
5 simp3 1030 . . . . 5 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> N e. ( ZZ>= ` ( M + K ) ) )
6 simp1 1028 . . . . . . 7 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> M e. ZZ )
76, 3zaddcld 9754 . . . . . 6 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( M + K ) e. ZZ )
8 eluz1 9907 . . . . . 6 |- ( ( M + K ) e. ZZ -> ( N e. ( ZZ>= ` ( M + K ) ) <-> ( N e. ZZ /\ ( M + K ) <_ N ) ) )
97, 8syl 14 . . . . 5 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( N e. ( ZZ>= ` ( M + K ) ) <-> ( N e. ZZ /\ ( M + K ) <_ N ) ) )
105, 9mpbid 147 . . . 4 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( N e. ZZ /\ ( M + K ) <_ N ) )
1110simprd 114 . . 3 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( M + K ) <_ N )
126zred 9750 . . . 4 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> M e. RR )
133zred 9750 . . . 4 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> K e. RR )
142zred 9750 . . . 4 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> N e. RR )
15 leaddsub 8759 . . . 4 |- ( ( M e. RR /\ K e. RR /\ N e. RR ) -> ( ( M + K ) <_ N <-> M <_ ( N - K ) ) )
1612, 13, 14, 15syl3anc 1278 . . 3 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( ( M + K ) <_ N <-> M <_ ( N - K ) ) )
1711, 16mpbid 147 . 2 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> M <_ ( N - K ) )
18 eluz1 9907 . . 3 |- ( M e. ZZ -> ( ( N - K ) e. ( ZZ>= ` M ) <-> ( ( N - K ) e. ZZ /\ M <_ ( N - K ) ) ) )
196, 18syl 14 . 2 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( ( N - K ) e. ( ZZ>= ` M ) <-> ( ( N - K ) e. ZZ /\ M <_ ( N - K ) ) ) )
204, 17, 19mpbir2and 957 1 |- ( ( M e. ZZ /\ K e. ZZ /\ N e. ( ZZ>= ` ( M + K ) ) ) -> ( N - K ) e. ( ZZ>= ` M ) )
Colors of variables: wff set class
Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   /\ w3a 1009   e. wcel 2209   class class class wbr 4128   ` cfv 5375  (class class class)co 6078   RRcr 8171   + caddc 8175   <_ cle 8354   - cmin 8490   ZZcz 9626   ZZ>=cuz 9903
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 4247  ax-pow 4309  ax-pr 4344  ax-un 4576  ax-setind 4682  ax-cnex 8263  ax-resscn 8264  ax-1cn 8265  ax-1re 8266  ax-icn 8267  ax-addcl 8268  ax-addrcl 8269  ax-mulcl 8270  ax-addcom 8272  ax-addass 8274  ax-distr 8276  ax-i2m1 8277  ax-0lt1 8278  ax-0id 8280  ax-rnegex 8281  ax-cnre 8283  ax-pre-ltirr 8284  ax-pre-ltwlin 8285  ax-pre-lttrn 8286  ax-pre-ltadd 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-rab 2537  df-v 2823  df-sbc 3052  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3714  df-pr 3715  df-op 3717  df-uni 3934  df-int 3969  df-br 4129  df-opab 4191  df-mpt 4192  df-id 4436  df-xp 4778  df-rel 4779  df-cnv 4780  df-co 4781  df-dm 4782  df-rn 4783  df-res 4784  df-ima 4785  df-iota 5335  df-fun 5377  df-fn 5378  df-f 5379  df-fv 5383  df-riota 6031  df-ov 6081  df-oprab 6082  df-mpo 6083  df-pnf 8355  df-mnf 8356  df-xr 8357  df-ltxr 8358  df-le 8359  df-sub 8492  df-neg 8493  df-inn 9287  df-n0 9546  df-z 9627  df-uz 9904
This theorem is referenced by:  fzoss2  10562  shftuz  11563  climshftlemg  12049  isumshft  12238
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