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| Mirrors > Home > ILE Home > Th. List > lttri | Unicode version | ||
| Description: 'Less than' is transitive. Theorem I.17 of [Apostol] p. 20. (Contributed by NM, 14-May-1999.) |
| Ref | Expression |
|---|---|
| lt.1 |
|
| lt.2 |
|
| lt.3 |
|
| Ref | Expression |
|---|---|
| lttri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lt.1 |
. 2
| |
| 2 | lt.2 |
. 2
| |
| 3 | lt.3 |
. 2
| |
| 4 | lttr 8216 |
. 2
| |
| 5 | 1, 2, 3, 4 | mp3an 1371 |
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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4201 ax-pow 4257 ax-pr 4292 ax-un 4523 ax-setind 4628 ax-cnex 8086 ax-resscn 8087 ax-pre-lttrn 8109 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3888 df-br 4083 df-opab 4145 df-xp 4724 df-pnf 8179 df-mnf 8180 df-ltxr 8182 |
| This theorem is referenced by: 1lt3 9278 2lt4 9280 1lt4 9281 3lt5 9283 2lt5 9284 1lt5 9285 4lt6 9287 3lt6 9288 2lt6 9289 1lt6 9290 5lt7 9292 4lt7 9293 3lt7 9294 2lt7 9295 1lt7 9296 6lt8 9298 5lt8 9299 4lt8 9300 3lt8 9301 2lt8 9302 1lt8 9303 7lt9 9305 6lt9 9306 5lt9 9307 4lt9 9308 3lt9 9309 2lt9 9310 1lt9 9311 8lt10 9705 7lt10 9706 6lt10 9707 5lt10 9708 4lt10 9709 3lt10 9710 2lt10 9711 1lt10 9712 sincos2sgn 12272 cos12dec 12274 epos 12287 ene1 12291 eap1 12292 reeff1o 15441 pipos 15456 pigt3 15512 apdiff 16375 |
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