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| Mirrors > Home > MPE Home > Th. List > lem1d | Structured version Visualization version GIF version | ||
| Description: A number minus 1 is less than or equal to itself. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| ltp1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| Ref | Expression |
|---|---|
| lem1d | ⊢ (𝜑 → (𝐴 − 1) ≤ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltp1d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 2 | lem1 11998 | . 2 ⊢ (𝐴 ∈ ℝ → (𝐴 − 1) ≤ 𝐴) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (𝐴 − 1) ≤ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 class class class wbr 5085 (class class class)co 7367 ℝcr 11037 1c1 11039 ≤ cle 11180 − cmin 11377 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-po 5539 df-so 5540 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 |
| This theorem is referenced by: fzossrbm1 13643 seqcoll 14426 efgsp1 19712 efgredlemd 19719 efgredlem 19722 2lgslem1c 27356 rplogsumlem1 27447 logdivbnd 27519 wwlksm1edg 29949 clwlkclwwlklem2 30070 clwlkclwwlk 30072 clwwisshclwwslem 30084 clwwlkf 30117 wwlksubclwwlk 30128 fzspl 32862 pfxlsw2ccat 33010 wrdt2ind 33013 psgnfzto1stlem 33161 1arithidomlem1 33595 1arithidomlem2 33596 1arithidom 33597 submateqlem1 33951 elfzm12 35857 knoppndvlem14 36785 poimirlem6 37947 poimirlem7 37948 poimirlem13 37954 aks4d1p1p2 42509 sticksstones10 42594 sticksstones12a 42596 sticksstones12 42597 bcle2d 42618 aks6d1c7lem1 42619 unitscyglem4 42637 oddfl 45711 fmul01lt1lem2 46015 stoweidlem11 46439 wallispilem3 46495 etransclem23 46685 iccpartipre 47881 flnn0div2ge 49009 |
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