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Mirrors > Home > ILE Home > Th. List > zrevaddcl | Unicode version |
Description: Reverse closure law for addition of integers. (Contributed by NM, 11-May-2004.) |
Ref | Expression |
---|---|
zrevaddcl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zcn 8507 |
. . . . . . . . 9
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2 | pncan 7451 |
. . . . . . . . 9
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3 | 1, 2 | sylan2 280 |
. . . . . . . 8
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4 | 3 | ancoms 264 |
. . . . . . 7
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5 | 4 | adantr 270 |
. . . . . 6
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6 | zsubcl 8543 |
. . . . . . . 8
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7 | 6 | ancoms 264 |
. . . . . . 7
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8 | 7 | adantlr 461 |
. . . . . 6
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9 | 5, 8 | eqeltrrd 2160 |
. . . . 5
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10 | 9 | ex 113 |
. . . 4
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11 | zaddcl 8542 |
. . . . . 6
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12 | 11 | expcom 114 |
. . . . 5
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13 | 12 | adantr 270 |
. . . 4
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14 | 10, 13 | impbid 127 |
. . 3
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15 | 14 | pm5.32da 440 |
. 2
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16 | zcn 8507 |
. . 3
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17 | 16 | pm4.71ri 384 |
. 2
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18 | 15, 17 | syl6bbr 196 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 577 ax-in2 578 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-13 1445 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 ax-sep 3916 ax-pow 3968 ax-pr 3992 ax-un 4216 ax-setind 4308 ax-cnex 7199 ax-resscn 7200 ax-1cn 7201 ax-1re 7202 ax-icn 7203 ax-addcl 7204 ax-addrcl 7205 ax-mulcl 7206 ax-addcom 7208 ax-addass 7210 ax-distr 7212 ax-i2m1 7213 ax-0lt1 7214 ax-0id 7216 ax-rnegex 7217 ax-cnre 7219 ax-pre-ltirr 7220 ax-pre-ltwlin 7221 ax-pre-lttrn 7222 ax-pre-ltadd 7224 |
This theorem depends on definitions: df-bi 115 df-3or 921 df-3an 922 df-tru 1288 df-fal 1291 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-ne 2250 df-nel 2345 df-ral 2358 df-rex 2359 df-reu 2360 df-rab 2362 df-v 2612 df-sbc 2825 df-dif 2984 df-un 2986 df-in 2988 df-ss 2995 df-pw 3402 df-sn 3422 df-pr 3423 df-op 3425 df-uni 3622 df-int 3657 df-br 3806 df-opab 3860 df-id 4076 df-xp 4397 df-rel 4398 df-cnv 4399 df-co 4400 df-dm 4401 df-iota 4917 df-fun 4954 df-fv 4960 df-riota 5520 df-ov 5567 df-oprab 5568 df-mpt2 5569 df-pnf 7287 df-mnf 7288 df-xr 7289 df-ltxr 7290 df-le 7291 df-sub 7418 df-neg 7419 df-inn 8177 df-n0 8426 df-z 8503 |
This theorem is referenced by: eqreznegel 8850 |
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