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| Mirrors > Home > ILE Home > Th. List > resubcl | Unicode version | ||
| Description: Closure law for subtraction of reals. (Contributed by NM, 20-Jan-1997.) |
| Ref | Expression |
|---|---|
| resubcl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | recn 8276 |
. . 3
| |
| 2 | recn 8276 |
. . 3
| |
| 3 | negsub 8537 |
. . 3
| |
| 4 | 1, 2, 3 | syl2an 289 |
. 2
|
| 5 | renegcl 8550 |
. . 3
| |
| 6 | readdcl 8269 |
. . 3
| |
| 7 | 5, 6 | sylan2 286 |
. 2
|
| 8 | 4, 7 | eqeltrrd 2312 |
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 4233 ax-pow 4292 ax-pr 4327 ax-setind 4664 ax-resscn 8235 ax-1cn 8236 ax-icn 8238 ax-addcl 8239 ax-addrcl 8240 ax-mulcl 8241 ax-addcom 8243 ax-addass 8245 ax-distr 8247 ax-i2m1 8248 ax-0id 8251 ax-rnegex 8252 ax-cnre 8254 |
| 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 3046 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-iota 5317 df-fun 5359 df-fv 5365 df-riota 6011 df-ov 6061 df-oprab 6062 df-mpo 6063 df-sub 8462 df-neg 8463 |
| This theorem is referenced by: peano2rem 8556 resubcld 8671 posdif 8746 lt2sub 8751 le2sub 8752 cju 9252 elz2 9666 difrp 10043 iooshf 10304 iccshftl 10348 lincmb01cmp 10355 uzsubsubfz 10401 difelfzle 10490 fzonmapblen 10548 eluzgtdifelfzo 10564 subfzo0 10610 modfzo0difsn 10781 expubnd 10982 absdiflt 11802 absdifle 11803 elicc4abs 11804 abssubge0 11812 abs2difabs 11818 maxabsle 11914 resin4p 12429 recos4p 12430 cos01bnd 12469 cos01gt0 12474 pythagtriplem12 12998 pythagtriplem14 13000 pythagtriplem16 13002 fldivp1 13071 bl2ioo 15541 ioo2bl 15542 ioo2blex 15543 blssioo 15544 dich0 15643 sincosq1sgn 15817 sincosq2sgn 15818 sincosq3sgn 15819 sincosq4sgn 15820 sinq12gt0 15821 cosq14gt0 15823 tangtx 15829 relogdiv 15861 logdivlti 15872 gausslemma2dlem1a 16057 redc0 16968 reap0 16969 |
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