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Mirrors > Home > ILE Home > Th. List > ltp1 | GIF version |
Description: A number is less than itself plus 1. (Contributed by NM, 20-Aug-2001.) |
Ref | Expression |
---|---|
ltp1 | ⊢ (𝐴 ∈ ℝ → 𝐴 < (𝐴 + 1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re 8020 | . 2 ⊢ 1 ∈ ℝ | |
2 | 0lt1 8148 | . . 3 ⊢ 0 < 1 | |
3 | ltaddpos 8473 | . . 3 ⊢ ((1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (0 < 1 ↔ 𝐴 < (𝐴 + 1))) | |
4 | 2, 3 | mpbii 148 | . 2 ⊢ ((1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → 𝐴 < (𝐴 + 1)) |
5 | 1, 4 | mpan 424 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 < (𝐴 + 1)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2164 class class class wbr 4030 (class class class)co 5919 ℝcr 7873 0cc0 7874 1c1 7875 + caddc 7877 < clt 8056 |
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 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 ax-un 4465 ax-setind 4570 ax-cnex 7965 ax-resscn 7966 ax-1cn 7967 ax-1re 7968 ax-icn 7969 ax-addcl 7970 ax-addrcl 7971 ax-mulcl 7972 ax-addcom 7974 ax-addass 7976 ax-i2m1 7979 ax-0lt1 7980 ax-0id 7982 ax-rnegex 7983 ax-pre-ltadd 7990 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-nel 2460 df-ral 2477 df-rex 2478 df-rab 2481 df-v 2762 df-dif 3156 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-opab 4092 df-xp 4666 df-iota 5216 df-fv 5263 df-ov 5922 df-pnf 8058 df-mnf 8059 df-ltxr 8061 |
This theorem is referenced by: lep1 8866 letrp1 8869 recp1lt1 8920 ledivp1 8924 ltp1i 8926 ltp1d 8951 uzind 9431 ge0p1rp 9754 qbtwnxr 10329 hoverb 14827 reeff1olem 14947 |
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