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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 8143 |
. . 3
| |
| 2 | recn 8143 |
. . 3
| |
| 3 | negsub 8405 |
. . 3
| |
| 4 | 1, 2, 3 | syl2an 289 |
. 2
|
| 5 | renegcl 8418 |
. . 3
| |
| 6 | readdcl 8136 |
. . 3
| |
| 7 | 5, 6 | sylan2 286 |
. 2
|
| 8 | 4, 7 | eqeltrrd 2307 |
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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-setind 4629 ax-resscn 8102 ax-1cn 8103 ax-icn 8105 ax-addcl 8106 ax-addrcl 8107 ax-mulcl 8108 ax-addcom 8110 ax-addass 8112 ax-distr 8114 ax-i2m1 8115 ax-0id 8118 ax-rnegex 8119 ax-cnre 8121 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-opab 4146 df-id 4384 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-iota 5278 df-fun 5320 df-fv 5326 df-riota 5960 df-ov 6010 df-oprab 6011 df-mpo 6012 df-sub 8330 df-neg 8331 |
| This theorem is referenced by: peano2rem 8424 resubcld 8538 posdif 8613 lt2sub 8618 le2sub 8619 cju 9119 elz2 9529 difrp 9900 iooshf 10160 iccshftl 10204 lincmb01cmp 10211 uzsubsubfz 10255 difelfzle 10342 fzonmapblen 10399 eluzgtdifelfzo 10415 subfzo0 10460 modfzo0difsn 10629 expubnd 10830 absdiflt 11619 absdifle 11620 elicc4abs 11621 abssubge0 11629 abs2difabs 11635 maxabsle 11731 resin4p 12245 recos4p 12246 cos01bnd 12285 cos01gt0 12290 pythagtriplem12 12814 pythagtriplem14 12816 pythagtriplem16 12818 fldivp1 12887 bl2ioo 15240 ioo2bl 15241 ioo2blex 15242 blssioo 15243 dich0 15342 sincosq1sgn 15516 sincosq2sgn 15517 sincosq3sgn 15518 sincosq4sgn 15519 sinq12gt0 15520 cosq14gt0 15522 tangtx 15528 relogdiv 15560 logdivlti 15571 gausslemma2dlem1a 15753 redc0 16513 reap0 16514 |
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