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| Mirrors > Home > ILE Home > Th. List > zextle | Unicode version | ||
| Description: An extensionality-like property for integer ordering. (Contributed by NM, 29-Oct-2005.) |
| Ref | Expression |
|---|---|
| zextle |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zre 9330 |
. . . . . . . . 9
| |
| 2 | 1 | leidd 8541 |
. . . . . . . 8
|
| 3 | 2 | adantr 276 |
. . . . . . 7
|
| 4 | breq1 4036 |
. . . . . . . . 9
| |
| 5 | breq1 4036 |
. . . . . . . . 9
| |
| 6 | 4, 5 | bibi12d 235 |
. . . . . . . 8
|
| 7 | 6 | rspcva 2866 |
. . . . . . 7
|
| 8 | 3, 7 | mpbid 147 |
. . . . . 6
|
| 9 | 8 | adantlr 477 |
. . . . 5
|
| 10 | zre 9330 |
. . . . . . . . 9
| |
| 11 | 10 | leidd 8541 |
. . . . . . . 8
|
| 12 | 11 | adantr 276 |
. . . . . . 7
|
| 13 | breq1 4036 |
. . . . . . . . 9
| |
| 14 | breq1 4036 |
. . . . . . . . 9
| |
| 15 | 13, 14 | bibi12d 235 |
. . . . . . . 8
|
| 16 | 15 | rspcva 2866 |
. . . . . . 7
|
| 17 | 12, 16 | mpbird 167 |
. . . . . 6
|
| 18 | 17 | adantll 476 |
. . . . 5
|
| 19 | 9, 18 | jca 306 |
. . . 4
|
| 20 | 19 | ex 115 |
. . 3
|
| 21 | letri3 8107 |
. . . 4
| |
| 22 | 1, 10, 21 | syl2an 289 |
. . 3
|
| 23 | 20, 22 | sylibrd 169 |
. 2
|
| 24 | 23 | 3impia 1202 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-setind 4573 ax-cnex 7970 ax-resscn 7971 ax-pre-ltirr 7991 ax-pre-apti 7994 |
| This theorem depends on definitions: df-bi 117 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-nel 2463 df-ral 2480 df-rex 2481 df-rab 2484 df-v 2765 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-br 4034 df-opab 4095 df-xp 4669 df-cnv 4671 df-iota 5219 df-fv 5266 df-ov 5925 df-pnf 8063 df-mnf 8064 df-xr 8065 df-ltxr 8066 df-le 8067 df-neg 8200 df-z 9327 |
| This theorem is referenced by: zextlt 9418 |
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