| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ltleii | GIF version | ||
| Description: 'Less than' implies 'less than or equal to' (inference). (Contributed by NM, 22-Aug-1999.) |
| Ref | Expression |
|---|---|
| lt.1 | ⊢ 𝐴 ∈ ℝ |
| lt.2 | ⊢ 𝐵 ∈ ℝ |
| ltlei.1 | ⊢ 𝐴 < 𝐵 |
| Ref | Expression |
|---|---|
| ltleii | ⊢ 𝐴 ≤ 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltlei.1 | . 2 ⊢ 𝐴 < 𝐵 | |
| 2 | lt.1 | . . 3 ⊢ 𝐴 ∈ ℝ | |
| 3 | lt.2 | . . 3 ⊢ 𝐵 ∈ ℝ | |
| 4 | 2, 3 | ltlei 8428 | . 2 ⊢ (𝐴 < 𝐵 → 𝐴 ≤ 𝐵) |
| 5 | 1, 4 | ax-mp 5 | 1 ⊢ 𝐴 ≤ 𝐵 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 class class class wbr 4130 ℝcr 8178 < clt 8360 ≤ cle 8361 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-cnex 8270 ax-resscn 8271 ax-pre-ltirr 8291 ax-pre-lttrn 8293 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-xp 4780 df-cnv 4782 df-pnf 8362 df-mnf 8363 df-xr 8364 df-ltxr 8365 df-le 8366 |
| This theorem is used by: 0le1 8810 1le2 9517 1le3 9520 halfge0 9525 decleh 9820 5eluz3 9970 uzuzle23 9971 uzuzle24 9972 uzuzle34 9973 eluz4eluz2 9977 fz0to4untppr 10541 fzo0to42pr 10648 xnn0nnen 10887 4bc2eq6 11227 resqrexlemga 11803 sqrt9 11828 sqrt2gt1lt2 11829 sqrtpclii 11911 0.999... 12304 ef01bndlem 12539 sin01bnd 12540 cos01bnd 12541 cos2bnd 12543 cos12dec 12551 flodddiv4 12719 strleun 13507 dveflem 15876 sinhalfpilem 15942 sincosq1lem 15976 sincos4thpi 15991 sincos6thpi 15993 pigt3 15995 pige3 15996 cosq34lt1 16001 cos02pilt1 16002 cos0pilt1 16003 rpabscxpbnd 16095 2logb9irr 16126 2logb9irrap 16132 log2tlbndlog2 16139 log2ublog2 16143 ppiublem1 16192 ppiqub 16194 bposlem3 16211 bposlem4 16212 bposlem5 16213 lgsdir2lem1 16245 konigsbergiedgwen 16823 konigsberglem1 16827 konigsberglem2 16828 konigsberglem3 16829 ex-fl 16837 ex-gcd 16843 |
| Copyright terms: Public domain | W3C validator |