| Hilbert Space Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: A necessary and sufficient condition for the product of two projectors to be a projector is that the projectors commute. Part 1 of Theorem 1 of [AkhiezerGlazman] p. 65. |
| Ref | Expression |
|---|---|
| pjclem1.1 |
|
| pjclem1.2 |
|
| Ref | Expression |
|---|---|
| pjcmmul1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pjclem1.1 |
. . . 4
| |
| 2 | pjclem1.2 |
. . . 4
| |
| 3 | 1, 2 | pjclem4 10251 |
. . 3
|
| 4 | pjmfn 9791 |
. . . 4
| |
| 5 | 1, 2 | chincl 9512 |
. . . 4
|
| 6 | fnfvelrn 3752 |
. . . 4
| |
| 7 | 4, 5, 6 | mp2an 694 |
. . 3
|
| 8 | 3, 7 | syl6eqel 1532 |
. 2
|
| 9 | pjadj2t 10238 |
. . 3
| |
| 10 | 1 | pjbdln 10201 |
. . . . 5
|
| 11 | 2 | pjbdln 10201 |
. . . . 5
|
| 12 | 10, 11 | adjco 10161 |
. . . 4
|
| 13 | pjadj3t 10239 |
. . . . . 6
| |
| 14 | 2, 13 | ax-mp 7 |
. . . . 5
|
| 15 | 14 | coeq1i 3240 |
. . . 4
|
| 16 | pjadj3t 10239 |
. . . . . 6
| |
| 17 | 1, 16 | ax-mp 7 |
. . . . 5
|
| 18 | 17 | coeq2i 3241 |
. . . 4
|
| 19 | 12, 15, 18 | 3eqtr 1475 |
. . 3
|
| 20 | 9, 19 | syl5reqr 1498 |
. 2
|
| 21 | 8, 20 | impbi 157 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: pjcmmul2 10254 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-4 951 ax-5 952 ax-6 953 ax-7 954 ax-gen 955 ax-8 1101 ax-9 1102 ax-10 1103 ax-12 1104 ax-13 1107 ax-14 1108 ax-11 1180 ax-17 1190 ax-16 1194 ax-11o 1202 ax-ext 1436 ax-rep 2661 ax-sep 2671 ax-nul 2678 ax-pow 2710 ax-pr 2747 ax-un 2830 ax-reg 4517 ax-inf2 4549 ax-ac 4668 ax-hilex 9017 ax-hfvadd 9018 ax-hvcom 9019 ax-hvass 9020 ax-hv0cl 9021 ax-hvaddid 9022 ax-hfvmul 9023 ax-hvmulid 9024 ax-hvmulass 9025 ax-hvdistr1 9026 ax-hvdistr2 9027 ax-hvmul0 9028 ax-hfi 9095 ax-his1 9098 ax-his2 9099 ax-his3 9100 ax-his4 9101 ax-hcompl 9222 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 773 df-3an 774 df-ex 957 df-sb 1155 df-eu 1359 df-mo 1360 df-clab 1441 df-cleq 1446 df-clel 1449 df-ne 1563 df-nel 1564 df-ral 1625 df-rex 1626 df-reu 1627 df-rab 1628 df-v 1787 df-sbc 1913 df-csb 1973 df-dif 2020 df-un 2021 df-in 2022 df-ss 2024 df-pss 2026 df-nul 2252 df-if 2333 df-pw 2373 df-sn 2383 df-pr 2384 df-tp 2386 df-op 2387 df-uni 2472 df-int 2502 df-iun 2536 df-iin 2537 df-br 2588 df-opab 2635 df-tr 2649 df-eprel 2794 df-id 2797 df-po 2804 df-so 2814 df-fr 2880 df-we 2897 df-ord 2914 df-on 2915 df-lim 2916 df-suc 2917 df-om 3095 df-xp 3147 df-rel 3148 df-cnv 3149 df-co 3150 df-dm 3151 df-rn 3152 df-res 3153 df-ima 3154 df-fun 3155 df-fn 3156 df-f 3157 df-f1 3158 df-fo 3159 df-f1o 3160 df-fv 3161 df-rdg 3871 df-opr 3904 df-oprab 3905 df-1st 4017 df-2nd 4018 df-1o 4071 df-oadd 4073 df-omul 4074 df-er 4199 df-ec 4201 df-qs 4204 df-map 4262 df-en 4305 df-dom 4306 df-sdom 4307 df-sup 4500 df-r1 4567 df-rank 4568 df-ni 4923 df-pli 4924 df-mi 4925 df-lti 4926 df-plpq 4958 df-mpq 4959 df-enq 4960 df-nq 4961 df-plq 4962 df-mq 4963 df-rq 4964 df-ltq 4965 df-1q 4966 df-np 5009 df-1p 5010 df-plp 5011 df-mp 5012 df-ltp 5013 df-plpr 5087 df-mpr 5088 df-enr 5089 df-nr 5090 df-plr 5091 df-mr 5092 df-ltr 5093 df-0r 5094 df-1r 5095 df-m1r 5096 df-c 5163 df-0 5164 df-1 5165 df-i 5166 df-r 5167 df-plus 5168 df-mul 5169 df-lt 5170 df-sub 5279 df-neg 5281 df-pnf 5410 df-mnf 5411 df-xr 5412 df-ltxr 5413 df-le 5414 df-div 5623 df-n 5824 df-2 5868 df-3 5869 df-4 5870 df-n0 5998 df-z 6034 df-fl 6123 df-q 6145 df-seq1 6196 df-shft 6229 df-ioo 6249 df-uz 6301 df-fz 6351 df-seqz 6416 df-exp 6452 df-sqr 6551 df-re 6633 df-im 6634 df-cj 6635 df-abs 6636 df-clim 6864 df-sum 6869 df-top 7485 df-bases 7487 df-topgen 7488 df-cld 7556 df-ntr 7557 df-cls 7558 df-cn 7642 df-cnp 7643 df-haus 7669 df-met 7680 df-bl 7682 df-opn 7683 df-lm 7808 df-grp 7919 df-gid 7920 df-ginv 7921 df-gdiv 7922 df-abl 7984 df-vc 8050 df-nv 8092 df-va 8094 df-ba 8095 df-sm 8096 df-0v 8097 df-vs 8098 df-nm 8099 df-ims 8100 df-ip 8219 df-lno 8274 df-nmo 8275 df-0o 8277 df-ph 8338 df-hvsub 9033 df-hnorm 9137 df-hcau 9200 df-hlim 9206 df-sh 9227 df-ch 9243 df-oc 9275 df-ch0 9276 df-pj 9366 df-h0op 9805 df-iop 9806 df-nmop 9896 df-cnop 9897 df-lnop 9898 df-bdop 9899 df-unop 9900 df-hmop 9901 df-nmfn 9902 df-nlfn 9903 df-cnfn 9904 df-lnfn 9905 df-adjh 9906 |