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| Mirrors > Home > ILE Home > Th. List > gtso | GIF version | ||
| Description: 'Greater than' is a strict ordering. (Contributed by JJ, 11-Oct-2018.) |
| Ref | Expression |
|---|---|
| gtso | ⊢ ◡ < Or ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltso 8393 | . 2 ⊢ < Or ℝ | |
| 2 | 0re 8316 | . . 3 ⊢ 0 ∈ ℝ | |
| 3 | elex2 2838 | . . 3 ⊢ (0 ∈ ℝ → ∃𝑥 𝑥 ∈ ℝ) | |
| 4 | cnvsom 5326 | . . 3 ⊢ (∃𝑥 𝑥 ∈ ℝ → ( < Or ℝ ↔ ◡ < Or ℝ)) | |
| 5 | 2, 3, 4 | mp2b 8 | . 2 ⊢ ( < Or ℝ ↔ ◡ < Or ℝ) |
| 6 | 1, 5 | mpbi 145 | 1 ⊢ ◡ < Or ℝ |
| Colors of variables: wff set class |
| Syntax hints: ↔ wb 105 ∃wex 1545 ∈ wcel 2209 Or wor 4435 ◡ccnv 4768 ℝcr 8168 0cc0 8169 < 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-1re 8263 ax-addrcl 8266 ax-rnegex 8278 ax-pre-ltirr 8281 ax-pre-ltwlin 8282 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-po 4436 df-iso 4437 df-xp 4775 df-cnv 4777 df-pnf 8352 df-mnf 8353 df-ltxr 8355 |
| This theorem is referenced by: (None) |
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