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| Mirrors > Home > ILE Home > Th. List > recidpipr | Unicode version | ||
| Description: Another way of saying that a number times its reciprocal is one. (Contributed by Jim Kingdon, 17-Jul-2021.) |
| Ref | Expression |
|---|---|
| recidpipr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnnq 7795 |
. . 3
| |
| 2 | recclnq 7765 |
. . . 4
| |
| 3 | 1, 2 | syl 14 |
. . 3
|
| 4 | mulnqpr 7950 |
. . 3
| |
| 5 | 1, 3, 4 | syl2anc 415 |
. 2
|
| 6 | recidnq 7766 |
. . . . . . 7
| |
| 7 | 1, 6 | syl 14 |
. . . . . 6
|
| 8 | 7 | breq2d 4143 |
. . . . 5
|
| 9 | 8 | abbidv 2358 |
. . . 4
|
| 10 | 7 | breq1d 4141 |
. . . . 5
|
| 11 | 10 | abbidv 2358 |
. . . 4
|
| 12 | 9, 11 | opeq12d 3912 |
. . 3
|
| 13 | df-i1p 7840 |
. . 3
| |
| 14 | 12, 13 | eqtr4di 2289 |
. 2
|
| 15 | 5, 14 | eqtr3d 2273 |
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-coll 4248 ax-sep 4251 ax-nul 4261 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-iinf 4737 |
| This proof depends on definitions: df-bi 117 df-dc 847 df-3or 1010 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-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 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-iun 4014 df-br 4132 df-opab 4194 df-mpt 4195 df-tr 4232 df-eprel 4436 df-id 4440 df-po 4443 df-iso 4444 df-iord 4513 df-on 4515 df-suc 4518 df-iom 4740 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 df-fv 5388 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-recs 6580 df-irdg 6645 df-1o 6691 df-2o 6692 df-oadd 6695 df-omul 6696 df-er 6811 df-ec 6813 df-qs 6817 df-ni 7677 df-pli 7678 df-mi 7679 df-lti 7680 df-plpq 7717 df-mpq 7718 df-enq 7720 df-nqqs 7721 df-plqqs 7722 df-mqqs 7723 df-1nqqs 7724 df-rq 7725 df-ltnqqs 7726 df-enq0 7797 df-nq0 7798 df-0nq0 7799 df-plq0 7800 df-mq0 7801 df-inp 7839 df-i1p 7840 df-imp 7842 |
| This theorem is used by: recidpirq 8231 |
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