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| Mirrors > Home > ILE Home > Th. List > bdtri | Unicode version | ||
| Description: Triangle inequality for bounded values. (Contributed by Jim Kingdon, 15-May-2023.) |
| Ref | Expression |
|---|---|
| bdtri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simp1l 1048 |
. . . . . 6
| |
| 2 | simp2l 1050 |
. . . . . 6
| |
| 3 | 1, 2 | readdcld 8251 |
. . . . 5
|
| 4 | simp3 1026 |
. . . . . 6
| |
| 5 | 4 | rpred 9975 |
. . . . 5
|
| 6 | 3, 5 | readdcld 8251 |
. . . 4
|
| 7 | 1 | recnd 8250 |
. . . . . . 7
|
| 8 | 2 | recnd 8250 |
. . . . . . 7
|
| 9 | 7, 8 | addcld 8241 |
. . . . . 6
|
| 10 | 5 | recnd 8250 |
. . . . . 6
|
| 11 | 9, 10 | subcld 8532 |
. . . . 5
|
| 12 | 11 | abscld 11804 |
. . . 4
|
| 13 | 6, 12 | resubcld 8602 |
. . 3
|
| 14 | 1, 5 | readdcld 8251 |
. . . . 5
|
| 15 | 7, 10 | subcld 8532 |
. . . . . 6
|
| 16 | 15 | abscld 11804 |
. . . . 5
|
| 17 | 14, 16 | resubcld 8602 |
. . . 4
|
| 18 | 2, 5 | readdcld 8251 |
. . . . 5
|
| 19 | 8, 10 | subcld 8532 |
. . . . . 6
|
| 20 | 19 | abscld 11804 |
. . . . 5
|
| 21 | 18, 20 | resubcld 8602 |
. . . 4
|
| 22 | 17, 21 | readdcld 8251 |
. . 3
|
| 23 | 2rp 9937 |
. . . 4
| |
| 24 | 23 | a1i 9 |
. . 3
|
| 25 | 12 | renegcld 8601 |
. . . . 5
|
| 26 | 16, 20 | readdcld 8251 |
. . . . . 6
|
| 27 | 5, 26 | resubcld 8602 |
. . . . 5
|
| 28 | 16 | recnd 8250 |
. . . . . . . . . 10
|
| 29 | 20 | recnd 8250 |
. . . . . . . . . 10
|
| 30 | 28, 29 | addcld 8241 |
. . . . . . . . 9
|
| 31 | 12 | recnd 8250 |
. . . . . . . . 9
|
| 32 | 30, 31, 30 | sub32d 8564 |
. . . . . . . 8
|
| 33 | 30 | subidd 8520 |
. . . . . . . . 9
|
| 34 | 33 | oveq1d 6043 |
. . . . . . . 8
|
| 35 | 32, 34 | eqtrd 2264 |
. . . . . . 7
|
| 36 | df-neg 8395 |
. . . . . . 7
| |
| 37 | 35, 36 | eqtr4di 2282 |
. . . . . 6
|
| 38 | 26, 12 | resubcld 8602 |
. . . . . . 7
|
| 39 | bdtrilem 11862 |
. . . . . . . 8
| |
| 40 | 26, 12, 5 | lesubaddd 8764 |
. . . . . . . 8
|
| 41 | 39, 40 | mpbird 167 |
. . . . . . 7
|
| 42 | 38, 5, 26, 41 | lesub1dd 8783 |
. . . . . 6
|
| 43 | 37, 42 | eqbrtrrd 4117 |
. . . . 5
|
| 44 | 25, 27, 6, 43 | leadd2dd 8782 |
. . . 4
|
| 45 | 9, 10 | addcld 8241 |
. . . . 5
|
| 46 | 45, 31 | negsubd 8538 |
. . . 4
|
| 47 | 9, 10, 10 | addassd 8244 |
. . . . . . 7
|
| 48 | 7, 8, 10, 10 | add4d 8390 |
. . . . . . 7
|
| 49 | 47, 48 | eqtrd 2264 |
. . . . . 6
|
| 50 | 49 | oveq1d 6043 |
. . . . 5
|
| 51 | 45, 10, 30 | addsubassd 8552 |
. . . . 5
|
| 52 | 7, 10 | addcld 8241 |
. . . . . 6
|
| 53 | 8, 10 | addcld 8241 |
. . . . . 6
|
| 54 | 52, 53, 28, 29 | addsub4d 8579 |
. . . . 5
|
| 55 | 50, 51, 54 | 3eqtr3d 2272 |
. . . 4
|
| 56 | 44, 46, 55 | 3brtr3d 4124 |
. . 3
|
| 57 | 13, 22, 24, 56 | lediv1dd 10034 |
. 2
|
| 58 | minabs 11859 |
. . 3
| |
| 59 | 3, 5, 58 | syl2anc 411 |
. 2
|
| 60 | minabs 11859 |
. . . . 5
| |
| 61 | 1, 5, 60 | syl2anc 411 |
. . . 4
|
| 62 | minabs 11859 |
. . . . 5
| |
| 63 | 2, 5, 62 | syl2anc 411 |
. . . 4
|
| 64 | 61, 63 | oveq12d 6046 |
. . 3
|
| 65 | 52, 28 | subcld 8532 |
. . . 4
|
| 66 | 53, 29 | subcld 8532 |
. . . 4
|
| 67 | 2cnd 9258 |
. . . 4
| |
| 68 | 2ap0 9278 |
. . . . 5
| |
| 69 | 68 | a1i 9 |
. . . 4
|
| 70 | 65, 66, 67, 69 | divdirapd 9051 |
. . 3
|
| 71 | 64, 70 | eqtr4d 2267 |
. 2
|
| 72 | 57, 59, 71 | 3brtr4d 4125 |
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-13 2204 ax-14 2205 ax-ext 2213 ax-coll 4209 ax-sep 4212 ax-nul 4220 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-iinf 4692 ax-cnex 8166 ax-resscn 8167 ax-1cn 8168 ax-1re 8169 ax-icn 8170 ax-addcl 8171 ax-addrcl 8172 ax-mulcl 8173 ax-mulrcl 8174 ax-addcom 8175 ax-mulcom 8176 ax-addass 8177 ax-mulass 8178 ax-distr 8179 ax-i2m1 8180 ax-0lt1 8181 ax-1rid 8182 ax-0id 8183 ax-rnegex 8184 ax-precex 8185 ax-cnre 8186 ax-pre-ltirr 8187 ax-pre-ltwlin 8188 ax-pre-lttrn 8189 ax-pre-apti 8190 ax-pre-ltadd 8191 ax-pre-mulgt0 8192 ax-pre-mulext 8193 ax-arch 8194 ax-caucvg 8195 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-3or 1006 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-nel 2499 df-ral 2516 df-rex 2517 df-reu 2518 df-rmo 2519 df-rab 2520 df-v 2805 df-sbc 3033 df-csb 3129 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-if 3608 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-iun 3977 df-br 4094 df-opab 4156 df-mpt 4157 df-tr 4193 df-id 4396 df-po 4399 df-iso 4400 df-iord 4469 df-on 4471 df-ilim 4472 df-suc 4474 df-iom 4695 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-isom 5342 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-1st 6312 df-2nd 6313 df-recs 6514 df-frec 6600 df-sup 7226 df-inf 7227 df-pnf 8258 df-mnf 8259 df-xr 8260 df-ltxr 8261 df-le 8262 df-sub 8394 df-neg 8395 df-reap 8797 df-ap 8804 df-div 8895 df-inn 9186 df-2 9244 df-3 9245 df-4 9246 df-n0 9445 df-z 9524 df-uz 9800 df-rp 9933 df-seqfrec 10756 df-exp 10847 df-cj 11465 df-re 11466 df-im 11467 df-rsqrt 11621 df-abs 11622 |
| This theorem is referenced by: xrbdtri 11899 |
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