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| Mirrors > Home > ILE Home > Th. List > pncan2 | Unicode version | ||
| Description: Cancellation law for subtraction. (Contributed by NM, 17-Apr-2005.) |
| Ref | Expression |
|---|---|
| pncan2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addcom 8412 |
. . . 4
| |
| 2 | 1 | oveq1d 6067 |
. . 3
|
| 3 | pncan 8481 |
. . 3
| |
| 4 | 2, 3 | eqtr3d 2269 |
. 2
|
| 5 | 4 | ancoms 268 |
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 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-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-setind 4661 ax-resscn 8221 ax-1cn 8222 ax-icn 8224 ax-addcl 8225 ax-addrcl 8226 ax-mulcl 8227 ax-addcom 8229 ax-addass 8231 ax-distr 8233 ax-i2m1 8234 ax-0id 8237 ax-rnegex 8238 ax-cnre 8240 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3045 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-iota 5314 df-fun 5356 df-fv 5362 df-riota 6005 df-ov 6055 df-oprab 6056 df-mpo 6057 df-sub 8448 |
| This theorem is referenced by: subid 8494 pnpcan 8514 pnncan 8516 pncan2d 8588 fzrev3 10425 fzrevral3 10445 fzosubel2 10544 facndiv 11105 bcnp1n 11125 lswccatn0lsw 11303 swrds1 11364 swrdccat2 11367 swrdccat3b 11436 trireciplem 12190 ballotfilem2 13149 ballotfilemfmpn 13155 |
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