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| Mirrors > Home > ILE Home > Th. List > dedekindeu | Unicode version | ||
| Description: A Dedekind cut identifies a unique real number. Similar to df-inp 7526 except that the the Dedekind cut is formed by sets of reals (rather than positive rationals). But in both cases the defining property of a Dedekind cut is that it is inhabited (bounded), rounded, disjoint, and located. (Contributed by Jim Kingdon, 5-Jan-2024.) |
| Ref | Expression |
|---|---|
| dedekindeu.lss |
     
  |
| dedekindeu.uss |
|
| dedekindeu.lm |
  
|
| dedekindeu.um |
|
| dedekindeu.lr |
   |
| dedekindeu.ur |
|
| dedekindeu.disj |
   |
| dedekindeu.loc |
|
| Ref | Expression |
|---|---|
| dedekindeu |
  ![/\](wedge.gif "/\"){kind=small}
|
,,, ,,, ,,,
is distinct from all other
variables.| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dedekindeu.lss |
. . 3
| |
| 2 | dedekindeu.uss |
. . 3
| |
| 3 | dedekindeu.lm |
. . 3
| |
| 4 | dedekindeu.um |
. . 3
| |
| 5 | dedekindeu.lr |
. . 3
| |
| 6 | dedekindeu.ur |
. . 3
| |
| 7 | dedekindeu.disj |
. . 3
| |
| 8 | dedekindeu.loc |
. . 3
| |
| 9 | 1, 2, 3, 4, 5, 6, 7, 8 | dedekindeulemlu 14775 |
. 2
|
| 10 | 1 | ad4antr 494 |
. . . . . . . . 9
#
|
| 11 | 2 | ad4antr 494 |
. . . . . . . . 9
#
|
| 12 | 3 | ad4antr 494 |
. . . . . . . . 9
#
|
| 13 | 4 | ad4antr 494 |
. . . . . . . . 9
#
|
| 14 | 5 | ad4antr 494 |
. . . . . . . . 9
#
|
| 15 | 6 | ad4antr 494 |
. . . . . . . . 9
#
|
| 16 | 7 | ad4antr 494 |
. . . . . . . . 9
#
|
| 17 | 8 | ad4antr 494 |
. . . . . . . . 9
#
|
| 18 | simprl 529 |
. . . . . . . . . . 11
| |
| 19 | 18 | ad2antrr 488 |
. . . . . . . . . 10
# |
| 20 | 19 | adantr 276 |
. . . . . . . . 9
#
|
| 21 | simprl 529 |
. . . . . . . . . 10
| |
| 22 | 21 | ad2antrr 488 |
. . . . . . . . 9
#
|
| 23 | simprr 531 |
. . . . . . . . . . 11
| |
| 24 | 23 | ad2antrr 488 |
. . . . . . . . . 10
# |
| 25 | 24 | adantr 276 |
. . . . . . . . 9
#
|
| 26 | simprr 531 |
. . . . . . . . . 10
| |
| 27 | 26 | ad2antrr 488 |
. . . . . . . . 9
#
|
| 28 | simpr 110 |
. . . . . . . . 9
#
| |
| 29 | 10, 11, 12, 13, 14, 15, 16, 17, 20, 22, 25, 27, 28 | dedekindeulemeu 14776 |
. . . . . . . 8
#
 |
| 30 | 1 | ad4antr 494 |
. . . . . . . . 9
#
|
| 31 | 2 | ad4antr 494 |
. . . . . . . . 9
#
|
| 32 | 3 | ad4antr 494 |
. . . . . . . . 9
#
|
| 33 | 4 | ad4antr 494 |
. . . . . . . . 9
#
|
| 34 | 5 | ad4antr 494 |
. . . . . . . . 9
#
|
| 35 | 6 | ad4antr 494 |
. . . . . . . . 9
#
|
| 36 | 7 | ad4antr 494 |
. . . . . . . . 9
#
|
| 37 | 8 | ad4antr 494 |
. . . . . . . . 9
#
|
| 38 | 24 | adantr 276 |
. . . . . . . . 9
#
|
| 39 | 26 | ad2antrr 488 |
. . . . . . . . 9
#
|
| 40 | 19 | adantr 276 |
. . . . . . . . 9
#
|
| 41 | 21 | ad2antrr 488 |
. . . . . . . . 9
#
|
| 42 | simpr 110 |
. . . . . . . . 9
#
| |
| 43 | 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42 | dedekindeulemeu 14776 |
. . . . . . . 8
#
|
| 44 | simpr 110 |
. . . . . . . . 9
# # | |
| 45 | reaplt 8607 |
. . . . . . . . . 10
#
| |
| 46 | 19, 24, 45 | syl2anc 411 |
. . . . . . . . 9
# #
|
| 47 | 44, 46 | mpbid 147 |
. . . . . . . 8
# |
| 48 | 29, 43, 47 | mpjaodan 799 |
. . . . . . 7
# |
| 49 | 48 | inegd 1383 |
. . . . . 6
# |
| 50 | simplrl 535 |
. . . . . . . 8
| |
| 51 | 50 | recnd 8048 |
. . . . . . 7
 |
| 52 | simplrr 536 |
. . . . . . . 8
| |
| 53 | 52 | recnd 8048 |
. . . . . . 7
|
| 54 | apti 8641 |
. . . . . . 7
# | |
| 55 | 51, 53, 54 | syl2anc 411 |
. . . . . 6
# |
| 56 | 49, 55 | mpbird 167 |
. . . . 5
|
| 57 | 56 | ex 115 |
. . . 4
|
| 58 | 57 | ralrimivva 2576 |
. . 3
|
| 59 | breq2 4033 |
. . . . . 6
| |
| 60 | 59 | ralbidv 2494 |
. . . . 5
|
| 61 | breq1 4032 |
. . . . . 6
| |
| 62 | 61 | ralbidv 2494 |
. . . . 5
|
| 63 | 60, 62 | anbi12d 473 |
. . . 4
|
| 64 | 63 | rmo4 2953 |
. . 3
|
| 65 | 58, 64 | sylibr 134 |
. 2
|
| 66 | reu5 2711 |
. 2
| |
| 67 | 9, 65, 66 | sylanbrc 417 |
1
|
| Colors of variables: wff set class |
| Syntax hints: wn 3
wi 4
wa 104
wb 105 wo 709 wceq 1364 wfal 1369 wcel 2164 wral 2472 wrex 2473 wreu 2474 wrmo 2475 cin 3152 wss 3153 c0 3446 class class class wbr 4029
cc 7870
cr 7871
clt 8054
# cap 8600 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 ax-un 4464 ax-setind 4569 ax-cnex 7963 ax-resscn 7964 ax-1cn 7965 ax-1re 7966 ax-icn 7967 ax-addcl 7968 ax-addrcl 7969 ax-mulcl 7970 ax-mulrcl 7971 ax-addcom 7972 ax-mulcom 7973 ax-addass 7974 ax-mulass 7975 ax-distr 7976 ax-i2m1 7977 ax-0lt1 7978 ax-1rid 7979 ax-0id 7980 ax-rnegex 7981 ax-precex 7982 ax-cnre 7983 ax-pre-ltirr 7984 ax-pre-ltwlin 7985 ax-pre-lttrn 7986 ax-pre-apti 7987 ax-pre-ltadd 7988 ax-pre-mulgt0 7989 ax-pre-suploc 7993 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-nel 2460 df-ral 2477 df-rex 2478 df-reu 2479 df-rmo 2480 df-rab 2481 df-v 2762 df-sbc 2986 df-dif 3155 df-un 3157 df-in 3159 df-ss 3166 df-nul 3447 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-opab 4091 df-id 4324 df-xp 4665 df-rel 4666 df-cnv 4667 df-co 4668 df-dm 4669 df-iota 5215 df-fun 5256 df-fv 5262 df-riota 5873 df-ov 5921 df-oprab 5922 df-mpo 5923 df-pnf 8056 df-mnf 8057 df-xr 8058 df-ltxr 8059 df-le 8060 df-sub 8192 df-neg 8193 df-reap 8594 df-ap 8601 |
| This theorem is referenced by: (None) |
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