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| Mirrors > Home > ILE Home > Th. List > addge01 | GIF version | ||
| Description: A number is less than or equal to itself plus a nonnegative number. (Contributed by NM, 21-Feb-2005.) |
| Ref | Expression |
|---|---|
| addge01 | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (0 ≤ 𝐵 ↔ 𝐴 ≤ (𝐴 + 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re 8043 | . . . 4 ⊢ 0 ∈ ℝ | |
| 2 | leadd2 8475 | . . . 4 ⊢ ((0 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (0 ≤ 𝐵 ↔ (𝐴 + 0) ≤ (𝐴 + 𝐵))) | |
| 3 | 1, 2 | mp3an1 1335 | . . 3 ⊢ ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (0 ≤ 𝐵 ↔ (𝐴 + 0) ≤ (𝐴 + 𝐵))) |
| 4 | 3 | ancoms 268 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (0 ≤ 𝐵 ↔ (𝐴 + 0) ≤ (𝐴 + 𝐵))) |
| 5 | recn 8029 | . . . . 5 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) | |
| 6 | 5 | addridd 8192 | . . . 4 ⊢ (𝐴 ∈ ℝ → (𝐴 + 0) = 𝐴) |
| 7 | 6 | adantr 276 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 + 0) = 𝐴) |
| 8 | 7 | breq1d 4044 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((𝐴 + 0) ≤ (𝐴 + 𝐵) ↔ 𝐴 ≤ (𝐴 + 𝐵))) |
| 9 | 4, 8 | bitrd 188 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (0 ≤ 𝐵 ↔ 𝐴 ≤ (𝐴 + 𝐵))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1364 ∈ wcel 2167 class class class wbr 4034 (class class class)co 5925 ℝcr 7895 0cc0 7896 + caddc 7899 ≤ cle 8079 |
| 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 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4152 ax-pow 4208 ax-pr 4243 ax-un 4469 ax-setind 4574 ax-cnex 7987 ax-resscn 7988 ax-1cn 7989 ax-1re 7990 ax-icn 7991 ax-addcl 7992 ax-addrcl 7993 ax-mulcl 7994 ax-addcom 7996 ax-addass 7998 ax-i2m1 8001 ax-0id 8004 ax-rnegex 8005 ax-pre-ltadd 8012 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-nel 2463 df-ral 2480 df-rex 2481 df-rab 2484 df-v 2765 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-pw 3608 df-sn 3629 df-pr 3630 df-op 3632 df-uni 3841 df-br 4035 df-opab 4096 df-xp 4670 df-cnv 4672 df-iota 5220 df-fv 5267 df-ov 5928 df-pnf 8080 df-mnf 8081 df-xr 8082 df-ltxr 8083 df-le 8084 |
| This theorem is referenced by: addge02 8517 subge02 8522 addge01d 8577 nn0addge1 9312 elfzmlbp 10224 flqbi2 10398 |
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