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| Mirrors > Home > ILE Home > Th. List > 1lt10 | GIF version | ||
| Description: 1 is less than 10. (Contributed by NM, 7-Nov-2012.) (Revised by Mario Carneiro, 9-Mar-2015.) (Revised by AV, 8-Sep-2021.) |
| Ref | Expression |
|---|---|
| 1lt10 | ⊢ 1 < ;10 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1lt2 9478 | . 2 ⊢ 1 < 2 | |
| 2 | 2lt10 9923 | . 2 ⊢ 2 < ;10 | |
| 3 | 1re 8325 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2re 9376 | . . 3 ⊢ 2 ∈ ℝ | |
| 5 | 10re 9803 | . . 3 ⊢ ;10 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 8431 | . 2 ⊢ ((1 < 2 ∧ 2 < ;10) → 1 < ;10) |
| 7 | 1, 2, 6 | mp2an 430 | 1 ⊢ 1 < ;10 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: class class class wbr 4130 0cc0 8179 1c1 8180 < clt 8360 2c2 9357 ;cdc 9781 |
| 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-1cn 8272 ax-1re 8273 ax-icn 8274 ax-addcl 8275 ax-addrcl 8276 ax-mulcl 8277 ax-addcom 8279 ax-mulcom 8280 ax-addass 8281 ax-mulass 8282 ax-distr 8283 ax-i2m1 8284 ax-0lt1 8285 ax-1rid 8286 ax-0id 8287 ax-rnegex 8288 ax-cnre 8290 ax-pre-lttrn 8293 ax-pre-ltadd 8295 |
| 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-int 3971 df-br 4131 df-opab 4193 df-xp 4780 df-iota 5337 df-fv 5385 df-ov 6088 df-pnf 8362 df-mnf 8363 df-ltxr 8365 df-inn 9307 df-2 9365 df-3 9366 df-4 9367 df-5 9368 df-6 9369 df-7 9370 df-8 9371 df-9 9372 df-dec 9782 |
| This theorem is used by: 0.999... 12304 3dvds 12647 11prm 13249 13prm 13250 17prm 13251 19prm 13252 23prm 13253 37prm 13255 43prm 13256 83prm 13257 139prm 13258 163prm 13259 317prm 13260 631prm 13261 basendxltplendx 13607 basendxnocndx 13616 basendxltdsndx 13622 basendxltunifndx 13632 log2ublog2 16143 basendxltedgfndx 16349 |
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