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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 8165 |
. . 3
| |
| 2 | recn 8165 |
. . 3
| |
| 3 | negsub 8427 |
. . 3
| |
| 4 | 1, 2, 3 | syl2an 289 |
. 2
|
| 5 | renegcl 8440 |
. . 3
| |
| 6 | readdcl 8158 |
. . 3
| |
| 7 | 5, 6 | sylan2 286 |
. 2
|
| 8 | 4, 7 | eqeltrrd 2309 |
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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-setind 4635 ax-resscn 8124 ax-1cn 8125 ax-icn 8127 ax-addcl 8128 ax-addrcl 8129 ax-mulcl 8130 ax-addcom 8132 ax-addass 8134 ax-distr 8136 ax-i2m1 8137 ax-0id 8140 ax-rnegex 8141 ax-cnre 8143 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-iota 5286 df-fun 5328 df-fv 5334 df-riota 5971 df-ov 6021 df-oprab 6022 df-mpo 6023 df-sub 8352 df-neg 8353 |
| This theorem is referenced by: peano2rem 8446 resubcld 8560 posdif 8635 lt2sub 8640 le2sub 8641 cju 9141 elz2 9551 difrp 9927 iooshf 10187 iccshftl 10231 lincmb01cmp 10238 uzsubsubfz 10282 difelfzle 10369 fzonmapblen 10427 eluzgtdifelfzo 10443 subfzo0 10489 modfzo0difsn 10658 expubnd 10859 absdiflt 11670 absdifle 11671 elicc4abs 11672 abssubge0 11680 abs2difabs 11686 maxabsle 11782 resin4p 12297 recos4p 12298 cos01bnd 12337 cos01gt0 12342 pythagtriplem12 12866 pythagtriplem14 12868 pythagtriplem16 12870 fldivp1 12939 bl2ioo 15293 ioo2bl 15294 ioo2blex 15295 blssioo 15296 dich0 15395 sincosq1sgn 15569 sincosq2sgn 15570 sincosq3sgn 15571 sincosq4sgn 15572 sinq12gt0 15573 cosq14gt0 15575 tangtx 15581 relogdiv 15613 logdivlti 15624 gausslemma2dlem1a 15806 redc0 16713 reap0 16714 |
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