| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > lep1 | GIF version | ||
| Description: A number is less than or equal to itself plus 1. (Contributed by NM, 5-Jan-2006.) |
| Ref | Expression |
|---|---|
| lep1 | ⊢ (𝐴 ∈ ℝ → 𝐴 ≤ (𝐴 + 1)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltp1 9120 | . 2 ⊢ (𝐴 ∈ ℝ → 𝐴 < (𝐴 + 1)) | |
| 2 | peano2re 8411 | . . 3 ⊢ (𝐴 ∈ ℝ → (𝐴 + 1) ∈ ℝ) | |
| 3 | ltle 8363 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ (𝐴 + 1) ∈ ℝ) → (𝐴 < (𝐴 + 1) → 𝐴 ≤ (𝐴 + 1))) | |
| 4 | 2, 3 | mpdan 421 | . 2 ⊢ (𝐴 ∈ ℝ → (𝐴 < (𝐴 + 1) → 𝐴 ≤ (𝐴 + 1))) |
| 5 | 1, 4 | mpd 13 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ≤ (𝐴 + 1)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2205 class class class wbr 4111 (class class class)co 6052 ℝcr 8128 1c1 8130 + caddc 8132 < clt 8310 ≤ cle 8311 |
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-cnex 8220 ax-resscn 8221 ax-1cn 8222 ax-1re 8223 ax-icn 8224 ax-addcl 8225 ax-addrcl 8226 ax-mulcl 8227 ax-addcom 8229 ax-addass 8231 ax-i2m1 8234 ax-0lt1 8235 ax-0id 8237 ax-rnegex 8238 ax-pre-ltirr 8241 ax-pre-lttrn 8243 ax-pre-ltadd 8245 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-xp 4757 df-cnv 4759 df-iota 5314 df-fv 5362 df-ov 6055 df-pnf 8312 df-mnf 8313 df-xr 8314 df-ltxr 8315 df-le 8316 |
| This theorem is referenced by: p1le 9125 lep1d 9207 peano2uz2 9688 |
| Copyright terms: Public domain | W3C validator |