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| Mirrors > Home > ILE Home > Th. List > absext | Unicode version | ||
| Description: Strong extensionality for absolute value. (Contributed by Jim Kingdon, 12-Aug-2021.) |
| Ref | Expression |
|---|---|
| absext |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | absval2 11845 |
. . . . . . 7
| |
| 2 | absval2 11845 |
. . . . . . 7
| |
| 3 | 1, 2 | breqan12d 4147 |
. . . . . 6
|
| 4 | simpl 109 |
. . . . . . . . . 10
| |
| 5 | 4 | recld 11726 |
. . . . . . . . 9
|
| 6 | 5 | resqcld 11158 |
. . . . . . . 8
|
| 7 | 4 | imcld 11727 |
. . . . . . . . 9
|
| 8 | 7 | resqcld 11158 |
. . . . . . . 8
|
| 9 | 6, 8 | readdcld 8361 |
. . . . . . 7
|
| 10 | 5 | sqge0d 11159 |
. . . . . . . 8
|
| 11 | 7 | sqge0d 11159 |
. . . . . . . 8
|
| 12 | 6, 8, 10, 11 | addge0d 8857 |
. . . . . . 7
|
| 13 | simpr 110 |
. . . . . . . . . 10
| |
| 14 | 13 | recld 11726 |
. . . . . . . . 9
|
| 15 | 14 | resqcld 11158 |
. . . . . . . 8
|
| 16 | 13 | imcld 11727 |
. . . . . . . . 9
|
| 17 | 16 | resqcld 11158 |
. . . . . . . 8
|
| 18 | 15, 17 | readdcld 8361 |
. . . . . . 7
|
| 19 | 14 | sqge0d 11159 |
. . . . . . . 8
|
| 20 | 16 | sqge0d 11159 |
. . . . . . . 8
|
| 21 | 15, 17, 19, 20 | addge0d 8857 |
. . . . . . 7
|
| 22 | sqrt11ap 11826 |
. . . . . . 7
| |
| 23 | 9, 12, 18, 21, 22 | syl22anc 1279 |
. . . . . 6
|
| 24 | 3, 23 | bitrd 188 |
. . . . 5
|
| 25 | 6 | recnd 8360 |
. . . . . 6
|
| 26 | 8 | recnd 8360 |
. . . . . 6
|
| 27 | 15 | recnd 8360 |
. . . . . 6
|
| 28 | 17 | recnd 8360 |
. . . . . 6
|
| 29 | addext 8946 |
. . . . . 6
| |
| 30 | 25, 26, 27, 28, 29 | syl22anc 1279 |
. . . . 5
|
| 31 | 24, 30 | sylbid 150 |
. . . 4
|
| 32 | 5 | recnd 8360 |
. . . . . . . . 9
|
| 33 | 32 | sqvald 11129 |
. . . . . . . 8
|
| 34 | 14 | recnd 8360 |
. . . . . . . . 9
|
| 35 | 34 | sqvald 11129 |
. . . . . . . 8
|
| 36 | 33, 35 | breq12d 4144 |
. . . . . . 7
|
| 37 | mulext 8950 |
. . . . . . . 8
| |
| 38 | 32, 32, 34, 34, 37 | syl22anc 1279 |
. . . . . . 7
|
| 39 | 36, 38 | sylbid 150 |
. . . . . 6
|
| 40 | oridm 769 |
. . . . . 6
| |
| 41 | 39, 40 | imbitrdi 161 |
. . . . 5
|
| 42 | 7 | recnd 8360 |
. . . . . . . . 9
|
| 43 | 42 | sqvald 11129 |
. . . . . . . 8
|
| 44 | 16 | recnd 8360 |
. . . . . . . . 9
|
| 45 | 44 | sqvald 11129 |
. . . . . . . 8
|
| 46 | 43, 45 | breq12d 4144 |
. . . . . . 7
|
| 47 | mulext 8950 |
. . . . . . . 8
| |
| 48 | 42, 42, 44, 44, 47 | syl22anc 1279 |
. . . . . . 7
|
| 49 | 46, 48 | sylbid 150 |
. . . . . 6
|
| 50 | oridm 769 |
. . . . . 6
| |
| 51 | 49, 50 | imbitrdi 161 |
. . . . 5
|
| 52 | 41, 51 | orim12d 798 |
. . . 4
|
| 53 | 31, 52 | syld 45 |
. . 3
|
| 54 | apreim 8939 |
. . . 4
| |
| 55 | 5, 7, 14, 16, 54 | syl22anc 1279 |
. . 3
|
| 56 | 53, 55 | sylibrd 169 |
. 2
|
| 57 | 4 | replimd 11729 |
. . 3
|
| 58 | 13 | replimd 11729 |
. . 3
|
| 59 | 57, 58 | breq12d 4144 |
. 2
|
| 60 | 56, 59 | sylibrd 169 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-coll 4248 ax-sep 4251 ax-nul 4261 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-iinf 4737 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-mulrcl 8284 ax-addcom 8285 ax-mulcom 8286 ax-addass 8287 ax-mulass 8288 ax-distr 8289 ax-i2m1 8290 ax-0lt1 8291 ax-1rid 8292 ax-0id 8293 ax-rnegex 8294 ax-precex 8295 ax-cnre 8296 ax-pre-ltirr 8297 ax-pre-ltwlin 8298 ax-pre-lttrn 8299 ax-pre-apti 8300 ax-pre-ltadd 8301 ax-pre-mulgt0 8302 ax-pre-mulext 8303 ax-arch 8304 ax-caucvg 8305 |
| This proof depends on definitions: df-bi 117 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-if 3639 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-iun 4014 df-br 4132 df-opab 4194 df-mpt 4195 df-tr 4232 df-id 4440 df-po 4443 df-iso 4444 df-iord 4513 df-on 4515 df-ilim 4516 df-suc 4518 df-iom 4740 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-recs 6580 df-frec 6666 df-pnf 8368 df-mnf 8369 df-xr 8370 df-ltxr 8371 df-le 8372 df-sub 8506 df-neg 8507 df-reap 8911 df-ap 8918 df-div 9011 df-inn 9314 df-2 9372 df-3 9373 df-4 9374 df-n0 9575 df-z 9656 df-uz 9938 df-rp 10072 df-seqfrec 10906 df-exp 10997 df-cj 11629 df-re 11630 df-im 11631 df-rsqrt 11786 df-abs 11787 |
| This theorem is used by: abssubap0 11879 absltap 12301 absgtap 12302 apdifflemr 17303 |
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