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Mirrors > Home > ILE Home > Th. List > elfzom1p1elfzo | Unicode version |
Description: Increasing an element of a half-open range of nonnegative integers by 1 results in an element of the half-open range of nonnegative integers with an upper bound increased by 1. (Contributed by Alexander van der Vekens, 1-Aug-2018.) |
Ref | Expression |
---|---|
elfzom1p1elfzo |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfzo0 10212 |
. . 3
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2 | peano2nn0 9246 |
. . . . . . 7
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3 | 2 | 3ad2ant1 1020 |
. . . . . 6
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4 | 3 | adantr 276 |
. . . . 5
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5 | simpr 110 |
. . . . 5
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6 | nn0re 9215 |
. . . . . . . . . . 11
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7 | 6 | adantr 276 |
. . . . . . . . . 10
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8 | 1red 8002 |
. . . . . . . . . 10
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9 | nnre 8956 |
. . . . . . . . . . 11
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10 | 9 | adantl 277 |
. . . . . . . . . 10
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11 | 7, 8, 10 | ltaddsubd 8532 |
. . . . . . . . 9
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12 | 11 | biimprd 158 |
. . . . . . . 8
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13 | 12 | impancom 260 |
. . . . . . 7
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14 | 13 | 3adant2 1018 |
. . . . . 6
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15 | 14 | imp 124 |
. . . . 5
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16 | elfzo0 10212 |
. . . . 5
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17 | 4, 5, 15, 16 | syl3anbrc 1183 |
. . . 4
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18 | 17 | ex 115 |
. . 3
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19 | 1, 18 | sylbi 121 |
. 2
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20 | 19 | impcom 125 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2162 ax-14 2163 ax-ext 2171 ax-sep 4136 ax-pow 4192 ax-pr 4227 ax-un 4451 ax-setind 4554 ax-cnex 7932 ax-resscn 7933 ax-1cn 7934 ax-1re 7935 ax-icn 7936 ax-addcl 7937 ax-addrcl 7938 ax-mulcl 7939 ax-addcom 7941 ax-addass 7943 ax-distr 7945 ax-i2m1 7946 ax-0lt1 7947 ax-0id 7949 ax-rnegex 7950 ax-cnre 7952 ax-pre-ltirr 7953 ax-pre-ltwlin 7954 ax-pre-lttrn 7955 ax-pre-ltadd 7957 |
This theorem depends on definitions: df-bi 117 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2041 df-mo 2042 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-ne 2361 df-nel 2456 df-ral 2473 df-rex 2474 df-reu 2475 df-rab 2477 df-v 2754 df-sbc 2978 df-csb 3073 df-dif 3146 df-un 3148 df-in 3150 df-ss 3157 df-pw 3592 df-sn 3613 df-pr 3614 df-op 3616 df-uni 3825 df-int 3860 df-iun 3903 df-br 4019 df-opab 4080 df-mpt 4081 df-id 4311 df-xp 4650 df-rel 4651 df-cnv 4652 df-co 4653 df-dm 4654 df-rn 4655 df-res 4656 df-ima 4657 df-iota 5196 df-fun 5237 df-fn 5238 df-f 5239 df-fv 5243 df-riota 5852 df-ov 5899 df-oprab 5900 df-mpo 5901 df-1st 6165 df-2nd 6166 df-pnf 8024 df-mnf 8025 df-xr 8026 df-ltxr 8027 df-le 8028 df-sub 8160 df-neg 8161 df-inn 8950 df-n0 9207 df-z 9284 df-uz 9559 df-fz 10039 df-fzo 10173 |
This theorem is referenced by: (None) |
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