| 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 8427 | . 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 8809 1le2 9513 1le3 9516 halfge0 9521 decleh 9811 5eluz3 9961 uzuzle23 9962 uzuzle24 9963 uzuzle34 9964 eluz4eluz2 9968 fz0to4untppr 10531 fzo0to42pr 10638 xnn0nnen 10874 4bc2eq6 11213 resqrexlemga 11789 sqrt9 11814 sqrt2gt1lt2 11815 sqrtpclii 11896 0.999... 12288 ef01bndlem 12523 sin01bnd 12524 cos01bnd 12525 cos2bnd 12527 cos12dec 12535 flodddiv4 12703 strleun 13458 dveflem 15827 sinhalfpilem 15892 sincosq1lem 15926 sincos4thpi 15941 sincos6thpi 15943 pigt3 15945 pige3 15946 cosq34lt1 15951 cos02pilt1 15952 cos0pilt1 15953 rpabscxpbnd 16042 2logb9irr 16073 2logb9irrap 16079 log2tlbndlog2 16082 log2ublog2 16086 lgsdir2lem1 16147 konigsbergiedgwen 16725 konigsberglem1 16729 konigsberglem2 16730 konigsberglem3 16731 ex-fl 16739 ex-gcd 16745 |
| Copyright terms: Public domain | W3C validator |