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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 8295 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
| 7 | 3, 4, 5, 6 | syl3anc 1274 | . 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 2202 class class class wbr 4093 ℝcr 8074 < clt 8256 |
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8166 ax-resscn 8167 ax-pre-lttrn 8189 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-rab 2520 df-v 2805 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-xp 4737 df-pnf 8258 df-mnf 8259 df-ltxr 8261 |
| This theorem is referenced by: exbtwnzlemex 10555 rebtwn2z 10560 qbtwnrelemcalc 10561 expgt1 10885 ltexp2a 10899 expnlbnd2 10973 nn0ltexp2 11017 expcanlem 11023 expcan 11024 cvg1nlemcxze 11605 cvg1nlemcau 11607 cvg1nlemres 11608 recvguniqlem 11617 resqrexlemdecn 11635 resqrexlemcvg 11642 resqrexlemga 11646 qdenre 11825 reccn2ap 11936 georeclim 12137 geoisumr 12142 cvgratz 12156 efcllemp 12282 efgt1 12321 cos12dec 12392 dvdslelemd 12467 pythagtriplem13 12912 fldivp1 12984 4sqlem12 13038 nninfdclemlt 13135 ivthinclemlr 15431 ivthinclemur 15433 hovera 15441 ivthdichlem 15445 limcimolemlt 15458 reeff1olem 15565 sin0pilem1 15575 pilem3 15577 coseq0negpitopi 15630 tangtx 15632 cos02pilt1 15645 rplogcl 15673 cxplt 15710 cxple 15711 ltexp2 15735 mersenne 15794 lgsquadlem2 15880 cvgcmp2nlemabs 16747 trilpolemlt1 16756 apdifflemf 16761 |
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