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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ioosconn | Structured version Visualization version GIF version | ||
| Description: An open interval is simply connected. (Contributed by Mario Carneiro, 9-Mar-2015.) |
| Ref | Expression |
|---|---|
| ioosconn | ⊢ ((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) ∈ SConn |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iccssioo2 13554 | . . 3 ⊢ ((𝑥 ∈ (𝐴(,)𝐵) ∧ 𝑦 ∈ (𝐴(,)𝐵)) → (𝑥[,]𝑦) ⊆ (𝐴(,)𝐵)) | |
| 2 | 1 | rgen2 3202 | . 2 ⊢ ∀𝑥 ∈ (𝐴(,)𝐵)∀𝑦 ∈ (𝐴(,)𝐵)(𝑥[,]𝑦) ⊆ (𝐴(,)𝐵) |
| 3 | ioossre 13542 | . . 3 ⊢ (𝐴(,)𝐵) ⊆ ℝ | |
| 4 | eqid 2760 | . . . . 5 ⊢ ((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) = ((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) | |
| 5 | 4 | resconn 36098 | . . . 4 ⊢ ((𝐴(,)𝐵) ⊆ ℝ → (((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) ∈ SConn ↔ ((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) ∈ Conn)) |
| 6 | reconn 25154 | . . . 4 ⊢ ((𝐴(,)𝐵) ⊆ ℝ → (((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) ∈ Conn ↔ ∀𝑥 ∈ (𝐴(,)𝐵)∀𝑦 ∈ (𝐴(,)𝐵)(𝑥[,]𝑦) ⊆ (𝐴(,)𝐵))) | |
| 7 | 5, 6 | bitr2d 283 | . . 3 ⊢ ((𝐴(,)𝐵) ⊆ ℝ → (∀𝑥 ∈ (𝐴(,)𝐵)∀𝑦 ∈ (𝐴(,)𝐵)(𝑥[,]𝑦) ⊆ (𝐴(,)𝐵) ↔ ((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) ∈ SConn)) |
| 8 | 3, 7 | ax-mp 5 | . 2 ⊢ (∀𝑥 ∈ (𝐴(,)𝐵)∀𝑦 ∈ (𝐴(,)𝐵)(𝑥[,]𝑦) ⊆ (𝐴(,)𝐵) ↔ ((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) ∈ SConn) |
| 9 | 2, 8 | mpbi 233 | 1 ⊢ ((topGen‘ran (,)) ↾t (𝐴(,)𝐵)) ∈ SConn |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∈ wcel 2144 ∀wral 3076 ⊆ wss 3895 ran crn 5651 ‘cfv 6539 (class class class)co 7421 ℝcr 11203 (,)cioo 13480 [,]cicc 13483 ↾t crest 17597 topGenctg 17614 Conncconn 23735 SConncsconn 36072 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-cnex 11260 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 ax-pre-mulgt0 11281 ax-pre-sup 11282 ax-addf 11283 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-iin 4953 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-se 5604 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-isom 6548 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-of 7694 df-om 7879 df-1st 8002 df-2nd 8003 df-supp 8181 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-1o 8480 df-2o 8481 df-er 8721 df-map 8853 df-ixp 8930 df-en 8978 df-dom 8979 df-sdom 8980 df-fin 8981 df-fsupp 9358 df-fi 9407 df-sup 9438 df-inf 9439 df-oi 9508 df-card 10024 df-pnf 11349 df-mnf 11350 df-xr 11351 df-ltxr 11352 df-le 11353 df-sub 11547 df-neg 11548 df-div 11978 df-nn 12340 df-2 12409 df-3 12410 df-4 12411 df-5 12412 df-6 12413 df-7 12414 df-8 12415 df-9 12416 df-n0 12611 df-z 12698 df-dec 12819 df-uz 12970 df-q 13080 df-rp 13125 df-xneg 13245 df-xadd 13246 df-xmul 13247 df-ioo 13484 df-ico 13486 df-icc 13487 df-fz 13644 df-fzo 13793 df-seq 14149 df-exp 14209 df-hash 14479 df-cj 15272 df-re 15273 df-im 15274 df-sqrt 15408 df-abs 15409 df-struct 17331 df-sets 17348 df-slot 17366 df-ndx 17378 df-base 17394 df-ress 17415 df-plusg 17447 df-mulr 17448 df-starv 17449 df-sca 17450 df-vsca 17451 df-ip 17452 df-tset 17453 df-ple 17454 df-ds 17456 df-unif 17457 df-hom 17458 df-cco 17459 df-rest 17599 df-topn 17600 df-0g 17618 df-gsum 17619 df-topgen 17620 df-pt 17621 df-prds 17624 df-xrs 17680 df-qtop 17685 df-imas 17686 df-xps 17688 df-mre 17762 df-mrc 17763 df-acs 17765 df-mgm 18822 df-sgrp 18914 df-mnd 18930 df-submnd 18985 df-mulg 19284 df-cntz 19537 df-cmn 20002 df-psmet 21676 df-xmet 21677 df-met 21678 df-bl 21679 df-mopn 21680 df-cnfld 21685 df-top 23218 df-topon 23235 df-topsp 23257 df-bases 23270 df-cld 23343 df-cn 23551 df-cnp 23552 df-conn 23736 df-tx 23887 df-hmeo 24080 df-xms 24645 df-ms 24646 df-tms 24647 df-ii 25204 df-cncf 25205 df-htpy 25297 df-phtpy 25298 df-phtpc 25319 df-pconn 36073 df-sconn 36074 |
| This theorem is used by: retopsconn 36101 iccllysconn 36102 rellysconn 36103 |
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