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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 12059 | . 2 ⊢ (𝐴 ∈ ℝ → (𝐴 − 1) ≤ 𝐴) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → (𝐴 − 1) ≤ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 class class class wbr 5110 (class class class)co 7412 ℝcr 11100 1c1 11102 ≤ cle 11245 − cmin 11442 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 ax-resscn 11158 ax-1cn 11159 ax-icn 11160 ax-addcl 11161 ax-addrcl 11162 ax-mulcl 11163 ax-mulrcl 11164 ax-mulcom 11165 ax-addass 11166 ax-mulass 11167 ax-distr 11168 ax-i2m1 11169 ax-1ne0 11170 ax-1rid 11171 ax-rnegex 11172 ax-rrecex 11173 ax-cnre 11174 ax-pre-lttri 11175 ax-pre-lttrn 11176 ax-pre-ltadd 11177 ax-pre-mulgt0 11178 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-po 5571 df-so 5572 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-er 8695 df-en 8945 df-dom 8946 df-sdom 8947 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11444 df-neg 11445 |
| This theorem is referenced by: fzossrbm1 13719 seqcoll 14503 efgsp1 19808 efgredlemd 19815 efgredlem 19818 2lgslem1c 27535 rplogsumlem1 27626 logdivbnd 27698 wwlksm1edg 30208 clwlkclwwlklem2 30329 clwlkclwwlk 30331 clwwisshclwwslem 30343 clwwlkf 30376 wwlksubclwwlk 30387 fzspl 33112 pfxlsw2ccat 33248 wrdt2ind 33251 psgnfzto1stlem 33398 1arithidomlem1 33803 1arithidomlem2 33804 1arithidom 33805 submateqlem1 34175 elfzm12 36145 knoppndvlem14 37092 poimirlem6 38255 poimirlem7 38256 poimirlem13 38262 aks4d1p1p2 42815 sticksstones10 42900 sticksstones12a 42902 sticksstones12 42903 bcle2d 42924 aks6d1c7lem1 42925 unitscyglem4 42943 oddfl 45977 fmul01lt1lem2 46281 stoweidlem11 46705 wallispilem3 46761 etransclem23 46951 iccpartipre 48147 flnn0div2ge 49290 |
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