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Theorem uzennn 10798
Description: An upper integer set is equinumerous to the set of natural numbers. (Contributed by Jim Kingdon, 30-Jul-2023.)
Assertion
Ref Expression
uzennn |- ( M e. ZZ -> ( ZZ>= ` M ) ~~ NN )
Proof of Theorem uzennn
Dummy variables x y j k are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-uz 9854 . . . . 5 |- ZZ>= = ( j e. ZZ |-> { k e. ZZ | j <_ k } )
2 zex 9586 . . . . . 6 |- ZZ e. _V
32mptex 5912 . . . . 5 |- ( j e. ZZ |-> { k e. ZZ | j <_ k } ) e. _V
41, 3eqeltri 2305 . . . 4 |- ZZ>= e. _V
5 fvexg 5689 . . . 4 |- ( ( ZZ>= e. _V /\ M e. ZZ ) -> ( ZZ>= ` M ) e. _V )
64, 5mpan 424 . . 3 |- ( M e. ZZ -> ( ZZ>= ` M ) e. _V )
7 nn0ex 9502 . . . 4 |- NN0 e. _V
87a1i 9 . . 3 |- ( M e. ZZ -> NN0 e. _V )
9 eluzelz 9863 . . . . . . 7 |- ( x e. ( ZZ>= ` M ) -> x e. ZZ )
109adantl 277 . . . . . 6 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> x e. ZZ )
11 simpl 109 . . . . . 6 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> M e. ZZ )
1210, 11zsubcld 9705 . . . . 5 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> ( x - M ) e. ZZ )
13 eluzle 9866 . . . . . . 7 |- ( x e. ( ZZ>= ` M ) -> M <_ x )
1413adantl 277 . . . . . 6 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> M <_ x )
1510zred 9700 . . . . . . 7 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> x e. RR )
1611zred 9700 . . . . . . 7 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> M e. RR )
1715, 16subge0d 8809 . . . . . 6 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> ( 0 <_ ( x - M ) <-> M <_ x ) )
1814, 17mpbird 167 . . . . 5 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> 0 <_ ( x - M ) )
19 elnn0z 9590 . . . . 5 |- ( ( x - M ) e. NN0 <-> ( ( x - M ) e. ZZ /\ 0 <_ ( x - M ) ) )
2012, 18, 19sylanbrc 417 . . . 4 |- ( ( M e. ZZ /\ x e. ( ZZ>= ` M ) ) -> ( x - M ) e. NN0 )
2120ex 115 . . 3 |- ( M e. ZZ -> ( x e. ( ZZ>= ` M ) -> ( x - M ) e. NN0 ) )
22 simpl 109 . . . . 5 |- ( ( M e. ZZ /\ y e. NN0 ) -> M e. ZZ )
23 nn0z 9597 . . . . . . 7 |- ( y e. NN0 -> y e. ZZ )
2423adantl 277 . . . . . 6 |- ( ( M e. ZZ /\ y e. NN0 ) -> y e. ZZ )
2524, 22zaddcld 9704 . . . . 5 |- ( ( M e. ZZ /\ y e. NN0 ) -> ( y + M ) e. ZZ )
26 nn0ge0 9521 . . . . . . 7 |- ( y e. NN0 -> 0 <_ y )
2726adantl 277 . . . . . 6 |- ( ( M e. ZZ /\ y e. NN0 ) -> 0 <_ y )
2822zred 9700 . . . . . . 7 |- ( ( M e. ZZ /\ y e. NN0 ) -> M e. RR )
2924zred 9700 . . . . . . 7 |- ( ( M e. ZZ /\ y e. NN0 ) -> y e. RR )
3028, 29addge02d 8808 . . . . . 6 |- ( ( M e. ZZ /\ y e. NN0 ) -> ( 0 <_ y <-> M <_ ( y + M ) ) )
3127, 30mpbid 147 . . . . 5 |- ( ( M e. ZZ /\ y e. NN0 ) -> M <_ ( y + M ) )
32 eluz2 9859 . . . . 5 |- ( ( y + M ) e. ( ZZ>= ` M ) <-> ( M e. ZZ /\ ( y + M ) e. ZZ /\ M <_ ( y + M ) ) )
3322, 25, 31, 32syl3anbrc 1208 . . . 4 |- ( ( M e. ZZ /\ y e. NN0 ) -> ( y + M ) e. ( ZZ>= ` M ) )
3433ex 115 . . 3 |- ( M e. ZZ -> ( y e. NN0 -> ( y + M ) e. ( ZZ>= ` M ) ) )
359ad2antrl 490 . . . . . . 7 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> x e. ZZ )
3635zcnd 9701 . . . . . 6 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> x e. CC )
37 simpl 109 . . . . . . 7 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> M e. ZZ )
3837zcnd 9701 . . . . . 6 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> M e. CC )
39 simprr 533 . . . . . . 7 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> y e. NN0 )
4039nn0cnd 9555 . . . . . 6 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> y e. CC )
4136, 38, 40subadd2d 8603 . . . . 5 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> ( ( x - M ) = y <-> ( y + M ) = x ) )
42 bicom 140 . . . . . 6 |- ( ( ( x - M ) = y <-> ( y + M ) = x ) <-> ( ( y + M ) = x <-> ( x - M ) = y ) )
43 eqcom 2234 . . . . . . 7 |- ( ( y + M ) = x <-> x = ( y + M ) )
44 eqcom 2234 . . . . . . 7 |- ( ( x - M ) = y <-> y = ( x - M ) )
4543, 44bibi12i 229 . . . . . 6 |- ( ( ( y + M ) = x <-> ( x - M ) = y ) <-> ( x = ( y + M ) <-> y = ( x - M ) ) )
4642, 45bitri 184 . . . . 5 |- ( ( ( x - M ) = y <-> ( y + M ) = x ) <-> ( x = ( y + M ) <-> y = ( x - M ) ) )
4741, 46sylib 122 . . . 4 |- ( ( M e. ZZ /\ ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) ) -> ( x = ( y + M ) <-> y = ( x - M ) ) )
4847ex 115 . . 3 |- ( M e. ZZ -> ( ( x e. ( ZZ>= ` M ) /\ y e. NN0 ) -> ( x = ( y + M ) <-> y = ( x - M ) ) ) )
496, 8, 21, 34, 48en3d 7008 . 2 |- ( M e. ZZ -> ( ZZ>= ` M ) ~~ NN0 )
50 nn0ennn 10795 . 2 |- NN0 ~~ NN
51 entr 7024 . 2 |- ( ( ( ZZ>= ` M ) ~~ NN0 /\ NN0 ~~ NN ) -> ( ZZ>= ` M ) ~~ NN )
5249, 50, 51sylancl 413 1 |- ( M e. ZZ -> ( ZZ>= ` M ) ~~ NN )
Colors of variables: wff set class
Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1398   e. wcel 2203   {crab 2524   _Vcvv 2813   class class class wbr 4109   |-> cmpt 4171   ` cfv 5352  (class class class)co 6050   ~~ cen 6973   0cc0 8127   + caddc 8130   <_ cle 8309   - cmin 8444   NNcn 9237   NN0cn0 9496   ZZcz 9577   ZZ>=cuz 9853
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-coll 4225  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-f1 5357  df-fo 5358  df-f1o 5359  df-fv 5360  df-riota 6003  df-ov 6053  df-oprab 6054  df-mpo 6055  df-er 6767  df-en 6976  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
This theorem is referenced by:  xnn0nnen  10799  exmidunben  13177
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