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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 8253 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
| 7 | 3, 4, 5, 6 | syl3anc 1273 | . 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 4088 ℝcr 8031 < clt 8214 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8123 ax-resscn 8124 ax-pre-lttrn 8146 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-xp 4731 df-pnf 8216 df-mnf 8217 df-ltxr 8219 |
| This theorem is referenced by: exbtwnzlemex 10510 rebtwn2z 10515 qbtwnrelemcalc 10516 expgt1 10840 ltexp2a 10854 expnlbnd2 10928 nn0ltexp2 10972 expcanlem 10978 expcan 10979 cvg1nlemcxze 11547 cvg1nlemcau 11549 cvg1nlemres 11550 recvguniqlem 11559 resqrexlemdecn 11577 resqrexlemcvg 11584 resqrexlemga 11588 qdenre 11767 reccn2ap 11878 georeclim 12079 geoisumr 12084 cvgratz 12098 efcllemp 12224 efgt1 12263 cos12dec 12334 dvdslelemd 12409 pythagtriplem13 12854 fldivp1 12926 4sqlem12 12980 nninfdclemlt 13077 ivthinclemlr 15367 ivthinclemur 15369 hovera 15377 ivthdichlem 15381 limcimolemlt 15394 reeff1olem 15501 sin0pilem1 15511 pilem3 15513 coseq0negpitopi 15566 tangtx 15568 cos02pilt1 15581 rplogcl 15609 cxplt 15646 cxple 15647 ltexp2 15671 mersenne 15727 lgsquadlem2 15813 cvgcmp2nlemabs 16662 trilpolemlt1 16671 apdifflemf 16676 |
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