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| Mirrors > Home > MPE Home > Th. List > 1nq | Structured version Visualization version GIF version | ||
| Description: The positive fraction 'one'. (Contributed by NM, 29-Oct-1995.) (Revised by Mario Carneiro, 28-Apr-2013.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| 1nq | ⊢ 1Q ∈ Q |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-1nq 10839 | . 2 ⊢ 1Q = 〈1o, 1o〉 | |
| 2 | 1pi 10806 | . . 3 ⊢ 1o ∈ N | |
| 3 | pinq 10850 | . . 3 ⊢ (1o ∈ N → 〈1o, 1o〉 ∈ Q) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ 〈1o, 1o〉 ∈ Q |
| 5 | 1, 4 | eqeltri 2832 | 1 ⊢ 1Q ∈ Q |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 〈cop 4573 1oc1o 8398 Ncnpi 10767 Qcnq 10775 1Qc1q 10776 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 ax-un 7689 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fv 6506 df-om 7818 df-2nd 7943 df-1o 8405 df-ni 10795 df-lti 10798 df-nq 10835 df-1nq 10839 |
| This theorem is referenced by: nqerf 10853 mulidnq 10886 recmulnq 10887 recclnq 10889 1lt2nq 10896 halfnq 10899 1pr 10938 prlem934 10956 reclem3pr 10972 |
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