| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > xrltned | Structured version Visualization version GIF version | ||
| Description: 'Less than' implies not equal. (Contributed by Glauco Siliprandi, 21-Nov-2020.) |
| Ref | Expression |
|---|---|
| xrltned.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| xrltned.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ*) |
| xrltned.3 | ⊢ (𝜑 → 𝐴 < 𝐵) |
| Ref | Expression |
|---|---|
| xrltned | ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrltned.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
| 2 | xrltned.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ*) | |
| 3 | xrltned.3 | . . 3 ⊢ (𝜑 → 𝐴 < 𝐵) | |
| 4 | 1, 2, 3 | xrgtned 13078 | . 2 ⊢ (𝜑 → 𝐵 ≠ 𝐴) |
| 5 | 4 | necomd 2987 | 1 ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2113 ≠ wne 2932 class class class wbr 5098 ℝ*cxr 11165 < clt 11166 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11082 ax-resscn 11083 ax-pre-lttri 11100 ax-pre-lttrn 11101 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-mpt 5180 df-id 5519 df-po 5532 df-so 5533 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-er 8635 df-en 8884 df-dom 8885 df-sdom 8886 df-pnf 11168 df-mnf 11169 df-xr 11170 df-ltxr 11171 |
| This theorem is referenced by: infxr 45607 infleinflem2 45611 xrpnf 45725 pimxrneun 45728 ge0lere 45774 liminflbuz2 46055 liminflimsupxrre 46057 ioorrnopnxrlem 46546 sge0hsphoire 46829 hoidmv1lelem1 46831 hoidmv1lelem2 46832 hoidmv1lelem3 46833 hoidmvlelem1 46835 hoidmvlelem4 46838 pimiooltgt 46950 |
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