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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 8389 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
| 7 | 3, 4, 5, 6 | syl3anc 1278 | . 2 ⊢ (𝜑 → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) |
| 8 | 1, 2, 7 | mp2and 437 | 1 ⊢ (𝜑 → 𝐴 < 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2209 class class class wbr 4125 ℝcr 8168 < clt 8350 |
| 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 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 ax-un 4573 ax-setind 4679 ax-cnex 8260 ax-resscn 8261 ax-pre-lttrn 8283 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-opab 4188 df-xp 4775 df-pnf 8352 df-mnf 8353 df-ltxr 8355 |
| This theorem is referenced by: exbtwnzlemex 10662 rebtwn2z 10667 qbtwnrelemcalc 10668 expgt1 10992 ltexp2a 11006 expnlbnd2 11081 nn0ltexp2 11125 expcanlem 11131 expcan 11132 ssenneg 11258 cvg1nlemcxze 11726 cvg1nlemcau 11728 cvg1nlemres 11729 recvguniqlem 11738 resqrexlemdecn 11756 resqrexlemcvg 11763 resqrexlemga 11767 qdenre 11946 reccn2ap 12057 georeclim 12258 geoisumr 12263 cvgratz 12277 efcllemp 12403 efgt1 12442 cos12dec 12513 dvdslelemd 12588 pythagtriplem13 13033 fldivp1 13105 4sqlem12 13159 nninfdclemlt 13320 ivthinclemlr 15661 ivthinclemur 15663 hovera 15671 ivthdichlem 15675 limcimolemlt 15688 reeff1olem 15795 sin0pilem1 15805 pilem3 15807 coseq0negpitopi 15860 tangtx 15862 cos02pilt1 15875 rplogcl 15903 cxplt 15941 cxple 15942 ltexp2 15966 mersenne 16025 lgsquadlem2 16111 cvgcmp2nlemabs 16986 trilpolemlt1 16995 apdifflemf 17000 |
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