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Mirrors > Home > ILE Home > Th. List > mulreap | Unicode version |
Description: A product with a real multiplier apart from zero is real iff the multiplicand is real. (Contributed by Jim Kingdon, 14-Jun-2020.) |
Ref | Expression |
---|---|
mulreap |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rereb 10428 |
. . 3
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2 | 1 | 3ad2ant1 967 |
. 2
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3 | recl 10418 |
. . . . 5
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4 | 3 | recnd 7613 |
. . . 4
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5 | 4 | 3ad2ant1 967 |
. . 3
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6 | simp1 946 |
. . 3
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7 | recn 7572 |
. . . . 5
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8 | 7 | anim1i 334 |
. . . 4
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9 | 8 | 3adant1 964 |
. . 3
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10 | mulcanap 8231 |
. . 3
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11 | 5, 6, 9, 10 | syl3anc 1181 |
. 2
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12 | 7 | adantr 271 |
. . . . . . . . . 10
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13 | 4 | adantl 272 |
. . . . . . . . . 10
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14 | ax-icn 7537 |
. . . . . . . . . . . 12
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15 | imcl 10419 |
. . . . . . . . . . . . 13
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16 | 15 | recnd 7613 |
. . . . . . . . . . . 12
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17 | mulcl 7566 |
. . . . . . . . . . . 12
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18 | 14, 16, 17 | sylancr 406 |
. . . . . . . . . . 11
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19 | 18 | adantl 272 |
. . . . . . . . . 10
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20 | 12, 13, 19 | adddid 7609 |
. . . . . . . . 9
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21 | replim 10424 |
. . . . . . . . . . 11
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22 | 21 | adantl 272 |
. . . . . . . . . 10
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23 | 22 | oveq2d 5706 |
. . . . . . . . 9
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24 | mul12 7708 |
. . . . . . . . . . . 12
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25 | 14, 24 | mp3an1 1267 |
. . . . . . . . . . 11
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26 | 7, 16, 25 | syl2an 284 |
. . . . . . . . . 10
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27 | 26 | oveq2d 5706 |
. . . . . . . . 9
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28 | 20, 23, 27 | 3eqtr4d 2137 |
. . . . . . . 8
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29 | 28 | fveq2d 5344 |
. . . . . . 7
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30 | remulcl 7567 |
. . . . . . . . 9
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31 | 3, 30 | sylan2 281 |
. . . . . . . 8
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32 | remulcl 7567 |
. . . . . . . . 9
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33 | 15, 32 | sylan2 281 |
. . . . . . . 8
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34 | crre 10422 |
. . . . . . . 8
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35 | 31, 33, 34 | syl2anc 404 |
. . . . . . 7
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36 | 29, 35 | eqtr2d 2128 |
. . . . . 6
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37 | 36 | eqeq1d 2103 |
. . . . 5
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38 | mulcl 7566 |
. . . . . . 7
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39 | 7, 38 | sylan 278 |
. . . . . 6
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40 | rereb 10428 |
. . . . . 6
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41 | 39, 40 | syl 14 |
. . . . 5
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42 | 37, 41 | bitr4d 190 |
. . . 4
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43 | 42 | ancoms 265 |
. . 3
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44 | 43 | 3adant3 966 |
. 2
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45 | 2, 11, 44 | 3bitr2d 215 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 582 ax-in2 583 ax-io 668 ax-5 1388 ax-7 1389 ax-gen 1390 ax-ie1 1434 ax-ie2 1435 ax-8 1447 ax-10 1448 ax-11 1449 ax-i12 1450 ax-bndl 1451 ax-4 1452 ax-13 1456 ax-14 1457 ax-17 1471 ax-i9 1475 ax-ial 1479 ax-i5r 1480 ax-ext 2077 ax-sep 3978 ax-pow 4030 ax-pr 4060 ax-un 4284 ax-setind 4381 ax-cnex 7533 ax-resscn 7534 ax-1cn 7535 ax-1re 7536 ax-icn 7537 ax-addcl 7538 ax-addrcl 7539 ax-mulcl 7540 ax-mulrcl 7541 ax-addcom 7542 ax-mulcom 7543 ax-addass 7544 ax-mulass 7545 ax-distr 7546 ax-i2m1 7547 ax-0lt1 7548 ax-1rid 7549 ax-0id 7550 ax-rnegex 7551 ax-precex 7552 ax-cnre 7553 ax-pre-ltirr 7554 ax-pre-ltwlin 7555 ax-pre-lttrn 7556 ax-pre-apti 7557 ax-pre-ltadd 7558 ax-pre-mulgt0 7559 ax-pre-mulext 7560 |
This theorem depends on definitions: df-bi 116 df-3an 929 df-tru 1299 df-fal 1302 df-nf 1402 df-sb 1700 df-eu 1958 df-mo 1959 df-clab 2082 df-cleq 2088 df-clel 2091 df-nfc 2224 df-ne 2263 df-nel 2358 df-ral 2375 df-rex 2376 df-reu 2377 df-rmo 2378 df-rab 2379 df-v 2635 df-sbc 2855 df-dif 3015 df-un 3017 df-in 3019 df-ss 3026 df-pw 3451 df-sn 3472 df-pr 3473 df-op 3475 df-uni 3676 df-br 3868 df-opab 3922 df-mpt 3923 df-id 4144 df-po 4147 df-iso 4148 df-xp 4473 df-rel 4474 df-cnv 4475 df-co 4476 df-dm 4477 df-rn 4478 df-res 4479 df-ima 4480 df-iota 5014 df-fun 5051 df-fn 5052 df-f 5053 df-fv 5057 df-riota 5646 df-ov 5693 df-oprab 5694 df-mpt2 5695 df-pnf 7621 df-mnf 7622 df-xr 7623 df-ltxr 7624 df-le 7625 df-sub 7752 df-neg 7753 df-reap 8149 df-ap 8156 df-div 8237 df-2 8579 df-cj 10407 df-re 10408 df-im 10409 |
This theorem is referenced by: (None) |
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