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| Mirrors > Home > ILE Home > Th. List > nltled | GIF version | ||
| Description: 'Not less than ' implies 'less than or equal to'. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| ltd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| ltd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| nltled.1 | ⊢ (𝜑 → ¬ 𝐵 < 𝐴) |
| Ref | Expression |
|---|---|
| nltled | ⊢ (𝜑 → 𝐴 ≤ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nltled.1 | . 2 ⊢ (𝜑 → ¬ 𝐵 < 𝐴) | |
| 2 | ltd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 3 | ltd.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
| 4 | 2, 3 | lenltd 8232 | . 2 ⊢ (𝜑 → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) |
| 5 | 1, 4 | mpbird 167 | 1 ⊢ (𝜑 → 𝐴 ≤ 𝐵) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 ∈ wcel 2180 class class class wbr 4062 ℝcr 7966 < clt 8149 ≤ cle 8150 |
| 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 617 ax-in2 618 ax-io 713 ax-5 1473 ax-7 1474 ax-gen 1475 ax-ie1 1519 ax-ie2 1520 ax-8 1530 ax-10 1531 ax-11 1532 ax-i12 1533 ax-bndl 1535 ax-4 1536 ax-17 1552 ax-i9 1556 ax-ial 1560 ax-i5r 1561 ax-14 2183 ax-ext 2191 ax-sep 4181 ax-pow 4237 ax-pr 4272 |
| This theorem depends on definitions: df-bi 117 df-3an 985 df-tru 1378 df-nf 1487 df-sb 1789 df-eu 2060 df-mo 2061 df-clab 2196 df-cleq 2202 df-clel 2205 df-nfc 2341 df-ral 2493 df-rex 2494 df-v 2781 df-dif 3179 df-un 3181 df-in 3183 df-ss 3190 df-pw 3631 df-sn 3652 df-pr 3653 df-op 3655 df-br 4063 df-opab 4125 df-xp 4702 df-cnv 4704 df-xr 8153 df-le 8155 |
| This theorem is referenced by: ltntri 8242 suprubex 9066 infregelbex 9761 zsupcl 10418 zssinfcl 10419 infssuzledc 10421 seqf1oglem1 10708 cvgratz 12009 bitsfzolem 12431 bitsmod 12433 dvdslegcd 12451 pw2dvdseulemle 12655 gsumfzval 13390 gsumfzcl 13498 gsumfzreidx 13840 gsumfzsubmcl 13841 gsumfzmptfidmadd 13842 gsumfzmhm 13846 gsumfzfsum 14517 dedekindeulemuub 15256 dedekindeulemlu 15260 suplociccex 15264 dedekindicclemuub 15265 dedekindicclemlu 15269 ivthinclemlopn 15275 ivthinclemuopn 15277 refeq 16307 |
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