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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 12187 | . 2 ⊢ (𝐴 ∈ ℝ → (𝐴 − 1) ≤ 𝐴) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → (𝐴 − 1) ≤ 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2147 class class class wbr 5106 (class class class)co 7443 ℝcr 11226 1c1 11228 ≤ cle 11371 − cmin 11568 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-er 8745 df-en 9002 df-dom 9003 df-sdom 9004 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 |
| This theorem is used by: fzossrbm1 13850 seqcoll 14636 efgsp1 19981 efgredlemd 19988 efgredlem 19991 2lgslem1c 27750 rplogsumlem1 27841 logdivbnd 27913 wwlksm1edg 30500 clwlkclwwlklem2 30621 clwlkclwwlk 30623 clwwisshclwwslem 30635 clwwlkf 30668 wwlksubclwwlk 30679 fzspl 33451 pfxlsw2ccat 33583 wrdt2ind 33586 psgnfzto1stlem 33731 1arithidomlem1 34137 1arithidomlem2 34138 1arithidom 34139 submateqlem1 34509 elfzm12 36607 knoppndvlem14 37569 poimirlem6 38736 poimirlem7 38737 poimirlem13 38743 aks4d1p1p2 43312 sticksstones10 43397 sticksstones12a 43399 sticksstones12 43400 bcle2d 43421 aks6d1c7lem1 43422 unitscyglem4 43440 oddfl 46499 fmul01lt1lem2 46802 stoweidlem11 47226 wallispilem3 47282 etransclem23 47472 iccpartipre 48708 flnn0div2ge 49850 |
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