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| Mirrors > Home > ILE Home > Th. List > npcan | Unicode version | ||
| Description: Cancellation law for subtraction. (Contributed by NM, 10-May-2004.) (Revised by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| npcan |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | subcl 8515 |
. . 3
| |
| 2 | simpr 110 |
. . 3
| |
| 3 | 1, 2 | addcomd 8467 |
. 2
|
| 4 | pncan3 8524 |
. . 3
| |
| 5 | 4 | ancoms 268 |
. 2
|
| 6 | 3, 5 | eqtrd 2271 |
1
|
| 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 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-setind 4679 ax-resscn 8261 ax-1cn 8262 ax-icn 8264 ax-addcl 8265 ax-addrcl 8266 ax-mulcl 8267 ax-addcom 8269 ax-addass 8271 ax-distr 8273 ax-i2m1 8274 ax-0id 8277 ax-rnegex 8278 ax-cnre 8280 |
| This theorem depends on definitions: df-bi 117 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-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 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-opab 4188 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-iota 5332 df-fun 5374 df-fv 5380 df-riota 6028 df-ov 6078 df-oprab 6079 df-mpo 6080 df-sub 8489 |
| This theorem is referenced by: addsubass 8526 npncan 8537 nppcan 8538 nnpcan 8539 subcan2 8541 nnncan 8551 npcand 8631 nn1suc 9302 zlem1lt 9680 zltlem1 9681 peano5uzti 9733 nummac 9800 uzp1 9935 peano2uzr 9964 fz01en 10437 fzsuc2 10464 fseq1m1p1 10480 fzoss2 10559 fzoaddel2 10586 fzosplitsnm1 10605 fzosplitprm1 10631 modfzo0difsn 10810 seq3m1 10888 monoord2 10901 ser3mono 10902 seqf1oglem1 10934 seqf1oglem2 10935 expm1t 10982 expubnd 11011 bcm1k 11176 bcn2 11180 hashfzo 11241 hashfibclem 11260 hashf1 11265 seq3coll 11272 swrdfv2 11413 swrdspsleq 11417 swrdlsw 11419 ccatpfx 11451 shftlem 11559 shftfvalg 11561 shftfval 11564 iserex 12083 serf0 12096 fsumm1 12161 mptfzshft 12187 binomlem 12228 binom1dif 12232 isumsplit 12236 dvdssub2 12580 4sqlem19 13166 perfect1 16026 lgsquad2lem1 16114 clwwlknonex2lem2 16593 clwwlknonex2 16594 |
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