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Mirrors > Home > MPE Home > Th. List > 7pos | Structured version Visualization version GIF version |
Description: The number 7 is positive. (Contributed by NM, 27-May-1999.) |
Ref | Expression |
---|---|
7pos | ⊢ 0 < 7 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 6re 11402 | . . 3 ⊢ 6 ∈ ℝ | |
2 | 1re 10326 | . . 3 ⊢ 1 ∈ ℝ | |
3 | 6pos 11426 | . . 3 ⊢ 0 < 6 | |
4 | 0lt1 10840 | . . 3 ⊢ 0 < 1 | |
5 | 1, 2, 3, 4 | addgt0ii 10860 | . 2 ⊢ 0 < (6 + 1) |
6 | df-7 11377 | . 2 ⊢ 7 = (6 + 1) | |
7 | 5, 6 | breqtrri 4868 | 1 ⊢ 0 < 7 |
Colors of variables: wff setvar class |
Syntax hints: class class class wbr 4841 (class class class)co 6876 0cc0 10222 1c1 10223 + caddc 10225 < clt 10361 6c6 11368 7c7 11369 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1891 ax-4 1905 ax-5 2006 ax-6 2072 ax-7 2107 ax-8 2159 ax-9 2166 ax-10 2185 ax-11 2200 ax-12 2213 ax-13 2354 ax-ext 2775 ax-sep 4973 ax-nul 4981 ax-pow 5033 ax-pr 5095 ax-un 7181 ax-resscn 10279 ax-1cn 10280 ax-icn 10281 ax-addcl 10282 ax-addrcl 10283 ax-mulcl 10284 ax-mulrcl 10285 ax-mulcom 10286 ax-addass 10287 ax-mulass 10288 ax-distr 10289 ax-i2m1 10290 ax-1ne0 10291 ax-1rid 10292 ax-rnegex 10293 ax-rrecex 10294 ax-cnre 10295 ax-pre-lttri 10296 ax-pre-lttrn 10297 ax-pre-ltadd 10298 ax-pre-mulgt0 10299 |
This theorem depends on definitions: df-bi 199 df-an 386 df-or 875 df-3or 1109 df-3an 1110 df-tru 1657 df-ex 1876 df-nf 1880 df-sb 2065 df-mo 2590 df-eu 2607 df-clab 2784 df-cleq 2790 df-clel 2793 df-nfc 2928 df-ne 2970 df-nel 3073 df-ral 3092 df-rex 3093 df-reu 3094 df-rab 3096 df-v 3385 df-sbc 3632 df-csb 3727 df-dif 3770 df-un 3772 df-in 3774 df-ss 3781 df-nul 4114 df-if 4276 df-pw 4349 df-sn 4367 df-pr 4369 df-op 4373 df-uni 4627 df-br 4842 df-opab 4904 df-mpt 4921 df-id 5218 df-po 5231 df-so 5232 df-xp 5316 df-rel 5317 df-cnv 5318 df-co 5319 df-dm 5320 df-rn 5321 df-res 5322 df-ima 5323 df-iota 6062 df-fun 6101 df-fn 6102 df-f 6103 df-f1 6104 df-fo 6105 df-f1o 6106 df-fv 6107 df-riota 6837 df-ov 6879 df-oprab 6880 df-mpt2 6881 df-er 7980 df-en 8194 df-dom 8195 df-sdom 8196 df-pnf 10363 df-mnf 10364 df-xr 10365 df-ltxr 10366 df-le 10367 df-sub 10556 df-neg 10557 df-2 11372 df-3 11373 df-4 11374 df-5 11375 df-6 11376 df-7 11377 |
This theorem is referenced by: 8pos 11428 163prm 16156 bposlem8 25365 lgsdir2lem1 25399 mod42tp1mod8 42289 |
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