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| Mirrors > Home > ILE Home > Th. List > lttrd | GIF version | ||
| Description: Transitive law deduction for 'less than'. (Contributed by NM, 9-Jan-2006.) |
| Ref | Expression |
|---|---|
| ltd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| ltd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| letrd.3 | ⊢ (𝜑 → 𝐶 ∈ ℝ) |
| lttrd.4 | ⊢ (𝜑 → 𝐴 < 𝐵) |
| lttrd.5 | ⊢ (𝜑 → 𝐵 < 𝐶) |
| Ref | Expression |
|---|---|
| lttrd | ⊢ (𝜑 → 𝐴 < 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lttrd.4 | . 2 ⊢ (𝜑 → 𝐴 < 𝐵) | |
| 2 | lttrd.5 | . 2 ⊢ (𝜑 → 𝐵 < 𝐶) | |
| 3 | ltd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 4 | ltd.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
| 5 | letrd.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ) | |
| 6 | lttr 8243 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
| 7 | 3, 4, 5, 6 | syl3anc 1271 | . 2 ⊢ (𝜑 → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) |
| 8 | 1, 2, 7 | mp2and 433 | 1 ⊢ (𝜑 → 𝐴 < 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2200 class class class wbr 4086 ℝcr 8021 < clt 8204 |
| 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 4205 ax-pow 4262 ax-pr 4297 ax-un 4528 ax-setind 4633 ax-cnex 8113 ax-resscn 8114 ax-pre-lttrn 8136 |
| 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 2802 df-dif 3200 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-opab 4149 df-xp 4729 df-pnf 8206 df-mnf 8207 df-ltxr 8209 |
| This theorem is referenced by: exbtwnzlemex 10499 rebtwn2z 10504 qbtwnrelemcalc 10505 expgt1 10829 ltexp2a 10843 expnlbnd2 10917 nn0ltexp2 10961 expcanlem 10967 expcan 10968 cvg1nlemcxze 11533 cvg1nlemcau 11535 cvg1nlemres 11536 recvguniqlem 11545 resqrexlemdecn 11563 resqrexlemcvg 11570 resqrexlemga 11574 qdenre 11753 reccn2ap 11864 georeclim 12064 geoisumr 12069 cvgratz 12083 efcllemp 12209 efgt1 12248 cos12dec 12319 dvdslelemd 12394 pythagtriplem13 12839 fldivp1 12911 4sqlem12 12965 nninfdclemlt 13062 ivthinclemlr 15351 ivthinclemur 15353 hovera 15361 ivthdichlem 15365 limcimolemlt 15378 reeff1olem 15485 sin0pilem1 15495 pilem3 15497 coseq0negpitopi 15550 tangtx 15552 cos02pilt1 15565 rplogcl 15593 cxplt 15630 cxple 15631 ltexp2 15655 mersenne 15711 lgsquadlem2 15797 cvgcmp2nlemabs 16572 trilpolemlt1 16581 apdifflemf 16586 |
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