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| Mirrors > Home > ILE Home > Th. List > ltnrd | GIF version | ||
| Description: 'Less than' is irreflexive. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| ltd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| Ref | Expression |
|---|---|
| ltnrd | ⊢ (𝜑 → ¬ 𝐴 < 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 2 | ltnr 8403 | . 2 ⊢ (𝐴 ∈ ℝ → ¬ 𝐴 < 𝐴) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → ¬ 𝐴 < 𝐴) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∈ 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-ltirr 8292 |
| 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: fzonel 10579 infssuzex 10677 frec2uzlt2d 10856 frec2uzf1od 10858 zfz1isolemiso 11307 recvguniqlem 11776 resqrexlemoverl 11803 leabs 11856 ltabs 11870 maxleim 11988 climuni 12078 znnen 13341 dedekindeulemeu 15814 dedekindicclemeu 15823 ivthinc 15835 limcimo 15857 efltlemlt 15966 taupi 17290 |
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