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| Mirrors > Home > ILE Home > Th. List > ublbneg | Unicode version | ||
| Description: The image under negation of a bounded-above set of reals is bounded below. For a theorem which is similar but also adds that the bounds need to be the tightest possible, see supinfneg 10011. (Contributed by Paul Chapman, 21-Mar-2011.) |
| Ref | Expression |
|---|---|
| ublbneg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq1 4134 |
. . . . 5
| |
| 2 | 1 | cbvralv 2786 |
. . . 4
|
| 3 | 2 | rexbii 2557 |
. . 3
|
| 4 | breq2 4135 |
. . . . 5
| |
| 5 | 4 | ralbidv 2550 |
. . . 4
|
| 6 | 5 | cbvrexv 2787 |
. . 3
|
| 7 | 3, 6 | bitri 184 |
. 2
|
| 8 | renegcl 8594 |
. . . 4
| |
| 9 | elrabi 2979 |
. . . . . . . . 9
| |
| 10 | negeq 8526 |
. . . . . . . . . . . 12
| |
| 11 | 10 | eleq1d 2307 |
. . . . . . . . . . 11
|
| 12 | 11 | elrab3 2983 |
. . . . . . . . . 10
|
| 13 | 12 | biimpd 144 |
. . . . . . . . 9
|
| 14 | 9, 13 | mpcom 36 |
. . . . . . . 8
|
| 15 | breq1 4134 |
. . . . . . . . 9
| |
| 16 | 15 | rspcv 2925 |
. . . . . . . 8
|
| 17 | 14, 16 | syl 14 |
. . . . . . 7
|
| 18 | 17 | adantl 277 |
. . . . . 6
|
| 19 | lenegcon1 8801 |
. . . . . . 7
| |
| 20 | 9, 19 | sylan2 286 |
. . . . . 6
|
| 21 | 18, 20 | sylibrd 169 |
. . . . 5
|
| 22 | 21 | ralrimdva 2630 |
. . . 4
|
| 23 | breq1 4134 |
. . . . . 6
| |
| 24 | 23 | ralbidv 2550 |
. . . . 5
|
| 25 | 24 | rspcev 2929 |
. . . 4
|
| 26 | 8, 22, 25 | syl6an 1483 |
. . 3
|
| 27 | 26 | rexlimiv 2662 |
. 2
|
| 28 | 7, 27 | sylbir 135 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-distr 8289 ax-i2m1 8290 ax-0id 8293 ax-rnegex 8294 ax-cnre 8296 ax-pre-ltadd 8301 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-opab 4194 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-pnf 8368 df-mnf 8369 df-xr 8370 df-ltxr 8371 df-le 8372 df-sub 8506 df-neg 8507 |
| This theorem is used by: (None) |
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