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| Mirrors > Home > ILE Home > Th. List > 1nq | Unicode version | ||
| Description: The positive fraction 'one'. (Contributed by NM, 29-Oct-1995.) |
| Ref | Expression |
|---|---|
| 1nq |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1pi 7683 |
. . . 4
| |
| 2 | opelxpi 4806 |
. . . 4
| |
| 3 | 1, 1, 2 | mp2an 430 |
. . 3
|
| 4 | enqex 7728 |
. . . 4
| |
| 5 | 4 | ecelqsi 6863 |
. . 3
|
| 6 | 3, 5 | ax-mp 5 |
. 2
|
| 7 | df-1nqqs 7719 |
. 2
| |
| 8 | df-nqqs 7716 |
. 2
| |
| 9 | 6, 7, 8 | 3eltr4i 2320 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| 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-nul 4259 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-iinf 4735 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 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-ral 2533 df-rex 2534 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 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-suc 4516 df-iom 4738 df-xp 4780 df-cnv 4782 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 df-1o 6687 df-ec 6809 df-qs 6813 df-ni 7672 df-enq 7715 df-nqqs 7716 df-1nqqs 7719 |
| This theorem is used by: recmulnqg 7759 rec1nq 7763 ltaddnq 7775 halfnqq 7778 addnqprllem 7895 addnqprulem 7896 1pr 7922 addnqpr1 7930 appdivnq 7931 1idprl 7958 1idpru 7959 recexprlemm 7992 recexprlem1ssl 8001 recexprlem1ssu 8002 cauappcvgprlemm 8013 caucvgprlemm 8036 caucvgprprlemmu 8063 suplocexprlemmu 8086 |
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