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Mirrors > Home > MPE Home > Th. List > eliccxr | Structured version Visualization version GIF version |
Description: A member of a closed interval is an extended real. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
Ref | Expression |
---|---|
eliccxr | ⊢ (𝐴 ∈ (𝐵[,]𝐶) → 𝐴 ∈ ℝ*) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iccssxr 12813 | . 2 ⊢ (𝐵[,]𝐶) ⊆ ℝ* | |
2 | 1 | sseli 3962 | 1 ⊢ (𝐴 ∈ (𝐵[,]𝐶) → 𝐴 ∈ ℝ*) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2110 (class class class)co 7150 ℝ*cxr 10668 [,]cicc 12735 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-cnex 10587 ax-resscn 10588 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-iun 4913 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-fv 6357 df-ov 7153 df-oprab 7154 df-mpo 7155 df-1st 7683 df-2nd 7684 df-xr 10673 df-icc 12739 |
This theorem is referenced by: xrge0neqmnf 12834 xrge0nre 12835 isxmet2d 22931 stdbdxmet 23119 metds0 23452 metdstri 23453 metdsre 23455 metdseq0 23456 metdscnlem 23457 metnrmlem1a 23460 metnrmlem1 23461 oprpiece1res1 23549 xrge0infss 30478 xrge0mulgnn0 30671 xrge0omnd 30707 esumcvgre 31345 mblfinlem1 34923 iccintsng 41792 icoiccdif 41793 eliccnelico 41798 eliccelicod 41799 ge0xrre 41800 iblspltprt 42251 iblcncfioo 42256 itgspltprt 42257 gsumge0cl 42647 sge0tsms 42656 |
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