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Related theorems Unicode version |
| Description: The intersection of a non-empty set of closed subspaces is a closed subspace. |
| Ref | Expression |
|---|---|
| chintcl.1 |
|
| Ref | Expression |
|---|---|
| chintcl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | closedsub 9048 |
. 2
| |
| 2 | chintcl.1 |
. . . . . 6
| |
| 3 | 2 | pm3.26i 320 |
. . . . 5
|
| 4 | chsssh 9049 |
. . . . 5
| |
| 5 | 3, 4 | sstri 2070 |
. . . 4
|
| 6 | 2 | pm3.27i 324 |
. . . 4
|
| 7 | 5, 6 | pm3.2i 285 |
. . 3
|
| 8 | 7 | shintcl 9248 |
. 2
|
| 9 | visset 1810 |
. . . . . . . . . . 11
| |
| 10 | 9 | chlim 9059 |
. . . . . . . . . 10
|
| 11 | 10 | 3exp 831 |
. . . . . . . . 9
|
| 12 | 11 | com3r 35 |
. . . . . . . 8
|
| 13 | 3 | sseli 2062 |
. . . . . . . 8
|
| 14 | 12, 13 | syl5 21 |
. . . . . . 7
|
| 15 | 14 | imp 350 |
. . . . . 6
|
| 16 | 15 | r19.20dva 1707 |
. . . . 5
|
| 17 | 6 | fint 3645 |
. . . . 5
|
| 18 | 9 | elint2 2536 |
. . . . 5
|
| 19 | 16, 17, 18 | 3imtr4g 552 |
. . . 4
|
| 20 | 19 | impcom 351 |
. . 3
|
| 21 | 20 | gen2 982 |
. 2
|
| 22 | 1, 8, 21 | mpbir2an 729 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: chintclt 9251 chincl 9338 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 961 ax-gen 962 ax-8 963 ax-9 964 ax-10 965 ax-11 966 ax-12 967 ax-13 968 ax-14 969 ax-17 970 ax-4 972 ax-5o 974 ax-6o 977 ax-9o 1122 ax-10o 1139 ax-16 1209 ax-11o 1217 ax-ext 1458 ax-rep 2689 ax-sep 2699 ax-nul 2706 ax-pow 2738 ax-pr 2775 ax-un 2862 ax-inf2 4608 ax-hilex 8824 ax-hv0cl 8828 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 775 df-3an 776 df-ex 980 df-sb 1171 df-eu 1381 df-mo 1382 df-clab 1463 df-cleq 1468 df-clel 1471 df-ne 1585 df-ral 1647 df-rex 1648 df-reu 1649 df-rab 1650 df-v 1809 df-sbc 1939 df-csb 1999 df-dif 2046 df-un 2047 df-in 2048 df-ss 2050 df-pss 2052 df-nul 2278 df-if 2359 df-pw 2399 df-sn 2409 df-pr 2410 df-tp 2412 df-op 2413 df-uni 2500 df-int 2530 df-iun 2564 df-br 2616 df-opab 2663 df-tr 2677 df-eprel 2828 df-id 2831 df-po 2836 df-so 2846 df-fr 2913 df-we 2930 df-ord 2947 df-on 2948 df-lim 2949 df-suc 2950 df-om 3128 df-xp 3180 df-rel 3181 df-cnv 3182 df-co 3183 df-dm 3184 df-rn 3185 df-res 3186 df-ima 3187 df-fun 3188 df-fn 3189 df-f 3190 df-fv 3194 df-rdg 3927 df-opr 3960 df-oprab 3961 df-1st 4072 df-2nd 4073 df-1o 4126 df-oadd 4128 df-omul 4129 df-er 4254 df-ec 4256 df-qs 4259 df-ni 4983 df-pli 4984 df-mi 4985 df-lti 4986 df-plpq 5018 df-mpq 5019 df-enq 5020 df-nq 5021 df-plq 5022 df-mq 5023 df-rq 5024 df-ltq 5025 df-1q 5026 df-np 5069 df-1p 5070 df-plp 5071 df-mp 5072 df-ltp 5073 df-plpr 5147 df-mpr 5148 df-enr 5149 df-nr 5150 df-plr 5151 df-mr 5152 df-ltr 5153 df-0r 5154 df-1r 5155 df-m1r 5156 df-c 5223 df-0 5224 df-1 5225 df-i 5226 df-r 5227 df-plus 5228 df-mul 5229 df-sub 5339 df-neg 5341 df-n 5883 df-sh 9031 df-ch 9047 |