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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 8225 |
. . 3
| |
| 2 | recn 8225 |
. . 3
| |
| 3 | negsub 8486 |
. . 3
| |
| 4 | 1, 2, 3 | syl2an 289 |
. 2
|
| 5 | renegcl 8499 |
. . 3
| |
| 6 | readdcl 8218 |
. . 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 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 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-setind 4641 ax-resscn 8184 ax-1cn 8185 ax-icn 8187 ax-addcl 8188 ax-addrcl 8189 ax-mulcl 8190 ax-addcom 8192 ax-addass 8194 ax-distr 8196 ax-i2m1 8197 ax-0id 8200 ax-rnegex 8201 ax-cnre 8203 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-ral 2516 df-rex 2517 df-reu 2518 df-rab 2520 df-v 2805 df-sbc 3033 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-iota 5293 df-fun 5335 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-sub 8411 df-neg 8412 |
| This theorem is referenced by: peano2rem 8505 resubcld 8619 posdif 8694 lt2sub 8699 le2sub 8700 cju 9200 elz2 9612 difrp 9988 iooshf 10248 iccshftl 10292 lincmb01cmp 10299 uzsubsubfz 10344 difelfzle 10431 fzonmapblen 10489 eluzgtdifelfzo 10505 subfzo0 10551 modfzo0difsn 10720 expubnd 10921 absdiflt 11732 absdifle 11733 elicc4abs 11734 abssubge0 11742 abs2difabs 11748 maxabsle 11844 resin4p 12359 recos4p 12360 cos01bnd 12399 cos01gt0 12404 pythagtriplem12 12928 pythagtriplem14 12930 pythagtriplem16 12932 fldivp1 13001 bl2ioo 15361 ioo2bl 15362 ioo2blex 15363 blssioo 15364 dich0 15463 sincosq1sgn 15637 sincosq2sgn 15638 sincosq3sgn 15639 sincosq4sgn 15640 sinq12gt0 15641 cosq14gt0 15643 tangtx 15649 relogdiv 15681 logdivlti 15692 gausslemma2dlem1a 15877 redc0 16790 reap0 16791 |
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