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| Description: An idempotent Hermitian operator is a projection operator. Theorem 26.4 of [Halmos] p. 44. |
| Ref | Expression |
|---|---|
| hmopidmpj |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | id 59 |
. . 3
| |
| 2 | fveq1 3799 |
. . . . . 6
| |
| 3 | 2 | eqeq1d 1520 |
. . . . 5
|
| 4 | 3 | rabbisdv 1845 |
. . . 4
|
| 5 | 4 | fveq2d 3804 |
. . 3
|
| 6 | 1, 5 | eqeq12d 1526 |
. 2
|
| 7 | eqid 1512 |
. . 3
| |
| 8 | eleq1 1571 |
. . . . 5
| |
| 9 | coeq1 3344 |
. . . . . . 7
| |
| 10 | coeq2 3345 |
. . . . . . 7
| |
| 11 | 9, 10 | eqtrd 1544 |
. . . . . 6
|
| 12 | 11, 1 | eqeq12d 1526 |
. . . . 5
|
| 13 | 8, 12 | anbi12d 630 |
. . . 4
|
| 14 | eleq1 1571 |
. . . . 5
| |
| 15 | coeq1 3344 |
. . . . . . 7
| |
| 16 | coeq2 3345 |
. . . . . . 7
| |
| 17 | 15, 16 | eqtrd 1544 |
. . . . . 6
|
| 18 | id 59 |
. . . . . 6
| |
| 19 | 17, 18 | eqeq12d 1526 |
. . . . 5
|
| 20 | 14, 19 | anbi12d 630 |
. . . 4
|
| 21 | idhmop 10023 |
. . . . 5
| |
| 22 | hoif 9800 |
. . . . . . 7
| |
| 23 | f1of 3765 |
. . . . . . 7
| |
| 24 | 22, 23 | ax-mp 7 |
. . . . . 6
|
| 25 | 24 | hoid1i 9835 |
. . . . 5
|
| 26 | 21, 25 | pm3.2i 283 |
. . . 4
|
| 27 | 13, 20, 26 | elimhyp 2435 |
. . 3
|
| 28 | 7, 27 | hmopidmpji 10197 |
. 2
|
| 29 | 6, 28 | dedth 2428 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: pjhmopidm 10227 elpjch 10234 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 994 ax-gen 995 ax-8 996 ax-9 997 ax-10 998 ax-11 999 ax-12 1000 ax-13 1001 ax-14 1002 ax-17 1003 ax-4 1005 ax-5o 1007 ax-6o 1010 ax-9o 1155 ax-10o 1173 ax-16 1243 ax-11o 1251 ax-ext 1494 ax-rep 2744 ax-sep 2754 ax-nul 2761 ax-pow 2794 ax-pr 2832 ax-un 2920 ax-reg 4677 ax-inf2 4711 ax-ac 4830 ax-hilex 8988 ax-hfvadd 8989 ax-hvcom 8990 ax-hvass 8991 ax-hv0cl 8992 ax-hvaddid 8993 ax-hfvmul 8994 ax-hvmulid 8995 ax-hvmulass 8996 ax-hvdistr1 8997 ax-hvdistr2 8998 ax-hvmul0 8999 ax-hfi 9066 ax-his1 9069 ax-his2 9070 ax-his3 9071 ax-his4 9072 ax-hcompl 9191 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-3or 779 df-3an 780 df-ex 1013 df-sb 1205 df-eu 1415 df-mo 1416 df-clab 1500 df-cleq 1505 df-clel 1508 df-ne 1624 df-nel 1625 df-ral 1687 df-rex 1688 df-reu 1689 df-rab 1690 df-v 1850 df-sbc 1979 df-csb 2044 df-dif 2093 df-un 2094 df-in 2095 df-ss 2097 df-pss 2099 df-nul 2325 df-if 2407 df-pw 2447 df-sn 2457 df-pr 2458 df-tp 2460 df-op 2461 df-uni 2552 df-int 2582 df-iun 2616 df-iin 2617 df-br 2670 df-opab 2718 df-tr 2732 df-eprel 2886 df-id 2889 df-po 2894 df-so 2904 df-fr 2972 df-we 2989 df-ord 3006 df-on 3007 df-lim 3008 df-suc 3009 df-om 3193 df-xp 3239 df-rel 3240 df-cnv 3241 df-co 3242 df-dm 3243 df-rn 3244 df-res 3245 df-ima 3246 df-fun 3247 df-fn 3248 df-f 3249 df-f1 3250 df-fo 3251 df-f1o 3252 df-fv 3253 df-rdg 4008 df-opr 4041 df-oprab 4042 df-1st 4157 df-2nd 4158 df-1o 4217 df-oadd 4219 df-omul 4220 df-er 4345 df-ec 4347 df-qs 4350 df-map 4411 df-en 4455 df-dom 4456 df-sdom 4457 df-sup 4658 df-r1 4729 df-rank 4730 df-ni 5089 df-pli 5090 df-mi 5091 df-lti 5092 df-plpq 5124 df-mpq 5125 df-enq 5126 df-nq 5127 df-plq 5128 df-mq 5129 df-rq 5130 df-ltq 5131 df-1q 5132 df-np 5175 df-1p 5176 df-plp 5177 df-mp 5178 df-ltp 5179 df-plpr 5253 df-mpr 5254 df-enr 5255 df-nr 5256 df-plr 5257 df-mr 5258 df-ltr 5259 df-0r 5260 df-1r 5261 df-m1r 5262 df-c 5329 df-0 5330 df-1 5331 df-i 5332 df-r 5333 df-plus 5334 df-mul 5335 df-lt 5336 df-sub 5445 df-neg 5447 df-pnf 5576 df-mnf 5577 df-xr 5578 df-ltxr 5579 df-le 5580 df-div 5789 df-n 6012 df-2 6058 df-3 6059 df-4 6060 df-n0 6210 df-z 6246 df-q 6336 df-fl 6363 df-ioo 6420 df-uz 6478 df-fz 6528 df-seq1 6601 df-shft 6634 df-seqz 6656 df-exp 6692 df-sqr 6793 df-re 6874 df-im 6875 df-cj 6876 df-abs 6877 df-clim 7098 df-sum 7103 df-top 7717 df-bases 7719 df-topgen 7720 df-cld 7783 df-ntr 7784 df-cls 7785 df-cn 7874 df-cnp 7875 df-haus 7902 df-met 7913 &nbs |