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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 8400 | . . 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 |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ∈ wcel 2209 class class class wbr 4130 ℝcr 8179 < clt 8361 |
| This proof depends on 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 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-cnex 8271 ax-resscn 8272 ax-pre-lttrn 8294 |
| This proof 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 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-xp 4780 df-pnf 8363 df-mnf 8364 df-ltxr 8366 |
| This theorem is used by: exbtwnzlemex 10695 rebtwn2z 10700 qbtwnrelemcalc 10701 flaplt 10733 expgt1 11029 ltexp2a 11043 expnlbnd2 11118 nn0ltexp2 11163 expcanlem 11169 expcan 11170 ssenneg 11296 cvg1nlemcxze 11764 cvg1nlemcau 11766 cvg1nlemres 11767 recvguniqlem 11776 resqrexlemdecn 11794 resqrexlemcvg 11801 resqrexlemga 11805 qdenre 11985 reccn2ap 12098 georeclim 12299 geoisumr 12304 cvgratz 12318 efcllemp 12444 efgt1 12483 cos12dec 12554 dvdslelemd 12629 pythagtriplem13 13078 fldivp1 13150 4sqlem12 13204 nninfdclemlt 13394 ivthinclemlr 15829 ivthinclemur 15831 hovera 15839 ivthdichlem 15843 limcimolemlt 15856 reeff1olem 15963 sin0pilem1 15974 pilem3 15976 coseq0negpitopi 16029 tangtx 16031 cos02pilt1 16044 rplogcl 16073 logdivlt 16088 cxplt 16113 cxple 16114 ltexp2 16138 mersenne 16258 bposlem2 16273 bposlem6 16277 bposlem9 16280 lgsquadlem2 16363 cvgcmp2nlemabs 17247 trilpolemlt1 17257 apdifflemf 17262 |
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