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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 10902 | . 2 ⊢ 1Q = 〈1o, 1o〉 | |
| 2 | 1pi 10869 | . . 3 ⊢ 1o ∈ N | |
| 3 | pinq 10913 | . . 3 ⊢ (1o ∈ N → 〈1o, 1o〉 ∈ Q) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ 〈1o, 1o〉 ∈ Q |
| 5 | 1, 4 | eqeltri 2859 | 1 ⊢ 1Q ∈ Q |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2143 〈cop 4596 1oc1o 8447 Ncnpi 10830 Qcnq 10838 1Qc1q 10839 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fv 6546 df-om 7864 df-2nd 7988 df-1o 8454 df-ni 10858 df-lti 10861 df-nq 10898 df-1nq 10902 |
| This theorem is referenced by: nqerf 10916 mulidnq 10949 recmulnq 10950 recclnq 10952 1lt2nq 10959 halfnq 10962 1pr 11001 prlem934 11019 reclem3pr 11035 |
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