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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 12141 | . 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 2145 class class class wbr 5103 (class class class)co 7412 ℝcr 11180 1c1 11182 ≤ cle 11325 − cmin 11522 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 |
| 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 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-po 5559 df-so 5560 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-er 8701 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 |
| This theorem is used by: fzossrbm1 13803 seqcoll 14589 efgsp1 19931 efgredlemd 19938 efgredlem 19941 2lgslem1c 27702 rplogsumlem1 27793 logdivbnd 27865 wwlksm1edg 30452 clwlkclwwlklem2 30573 clwlkclwwlk 30575 clwwisshclwwslem 30587 clwwlkf 30620 wwlksubclwwlk 30631 fzspl 33363 pfxlsw2ccat 33495 wrdt2ind 33498 psgnfzto1stlem 33643 1arithidomlem1 34049 1arithidomlem2 34050 1arithidom 34051 submateqlem1 34421 elfzm12 36409 knoppndvlem14 37361 poimirlem6 38512 poimirlem7 38513 poimirlem13 38519 aks4d1p1p2 43088 sticksstones10 43173 sticksstones12a 43175 sticksstones12 43176 bcle2d 43197 aks6d1c7lem1 43198 unitscyglem4 43216 oddfl 46237 fmul01lt1lem2 46541 stoweidlem11 46965 wallispilem3 47021 etransclem23 47211 iccpartipre 48447 flnn0div2ge 49589 |
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