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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | recn 7014 |
. . 3
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2 | recn 7014 |
. . 3
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3 | negsub 7259 |
. . 3
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4 | 1, 2, 3 | syl2an 273 |
. 2
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5 | renegcl 7272 |
. . 3
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6 | readdcl 7007 |
. . 3
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7 | 5, 6 | sylan2 270 |
. 2
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8 | 4, 7 | eqeltrrd 2115 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-pow 3927 ax-pr 3944 ax-setind 4262 ax-resscn 6976 ax-1cn 6977 ax-icn 6979 ax-addcl 6980 ax-addrcl 6981 ax-mulcl 6982 ax-addcom 6984 ax-addass 6986 ax-distr 6988 ax-i2m1 6989 ax-0id 6992 ax-rnegex 6993 ax-cnre 6995 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-fal 1249 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ne 2206 df-ral 2311 df-rex 2312 df-reu 2313 df-rab 2315 df-v 2559 df-sbc 2765 df-dif 2920 df-un 2922 df-in 2924 df-ss 2931 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-br 3765 df-opab 3819 df-id 4030 df-xp 4351 df-rel 4352 df-cnv 4353 df-co 4354 df-dm 4355 df-iota 4867 df-fun 4904 df-fv 4910 df-riota 5468 df-ov 5515 df-oprab 5516 df-mpt2 5517 df-sub 7184 df-neg 7185 |
This theorem is referenced by: peano2rem 7278 resubcld 7379 posdif 7450 lt2sub 7455 le2sub 7456 cju 7913 elz2 8312 difrp 8619 iooshf 8821 iccshftl 8864 lincmb01cmp 8871 uzsubsubfz 8911 difelfzle 8992 fzonmapblen 9043 eluzgtdifelfzo 9053 subfzo0 9097 expubnd 9311 absdiflt 9688 absdifle 9689 elicc4abs 9690 abssubge0 9698 abs2difabs 9704 |
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