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Mirrors > Home > ILE Home > Th. List > sqrt2irrap | Unicode version |
Description: The square root of 2 is
irrational. That is, for any rational number,
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Ref | Expression |
---|---|
sqrt2irrap |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elq 9687 |
. . 3
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2 | 1 | biimpi 120 |
. 2
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3 | simplrl 535 |
. . . . . . . . 9
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4 | 3 | adantr 276 |
. . . . . . . 8
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5 | simplrr 536 |
. . . . . . . . 9
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6 | 5 | adantr 276 |
. . . . . . . 8
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7 | znq 9689 |
. . . . . . . . 9
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8 | qre 9690 |
. . . . . . . . 9
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9 | 7, 8 | syl 14 |
. . . . . . . 8
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10 | 4, 6, 9 | syl2anc 411 |
. . . . . . 7
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11 | sqrt2re 12301 |
. . . . . . . 8
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12 | 11 | a1i 9 |
. . . . . . 7
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13 | 0red 8020 |
. . . . . . . 8
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14 | 4 | zcnd 9440 |
. . . . . . . . . 10
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15 | 6 | nncnd 8996 |
. . . . . . . . . 10
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16 | 6 | nnap0d 9028 |
. . . . . . . . . 10
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17 | 14, 15, 16 | divrecapd 8812 |
. . . . . . . . 9
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18 | 4 | zred 9439 |
. . . . . . . . . 10
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19 | 6 | nnrecred 9029 |
. . . . . . . . . 10
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20 | simpr 110 |
. . . . . . . . . 10
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21 | 1red 8034 |
. . . . . . . . . . 11
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22 | 6 | nnrpd 9760 |
. . . . . . . . . . 11
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23 | 0le1 8500 |
. . . . . . . . . . . 12
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24 | 23 | a1i 9 |
. . . . . . . . . . 11
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25 | 21, 22, 24 | divge0d 9803 |
. . . . . . . . . 10
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26 | mulle0r 8963 |
. . . . . . . . . 10
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27 | 18, 19, 20, 25, 26 | syl22anc 1250 |
. . . . . . . . 9
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28 | 17, 27 | eqbrtrd 4051 |
. . . . . . . 8
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29 | 2re 9052 |
. . . . . . . . . 10
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30 | 2pos 9073 |
. . . . . . . . . 10
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31 | 29, 30 | sqrtgt0ii 11275 |
. . . . . . . . 9
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32 | 31 | a1i 9 |
. . . . . . . 8
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33 | 10, 13, 12, 28, 32 | lelttrd 8144 |
. . . . . . 7
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34 | 10, 12, 33 | gtapd 8656 |
. . . . . 6
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35 | 3 | adantr 276 |
. . . . . . . 8
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36 | simpr 110 |
. . . . . . . 8
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37 | elnnz 9327 |
. . . . . . . 8
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38 | 35, 36, 37 | sylanbrc 417 |
. . . . . . 7
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39 | 5 | adantr 276 |
. . . . . . 7
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40 | sqrt2irraplemnn 12317 |
. . . . . . 7
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41 | 38, 39, 40 | syl2anc 411 |
. . . . . 6
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42 | 0z 9328 |
. . . . . . . . 9
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43 | zlelttric 9362 |
. . . . . . . . 9
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44 | 42, 43 | mpan2 425 |
. . . . . . . 8
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45 | 44 | ad2antrl 490 |
. . . . . . 7
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46 | 45 | adantr 276 |
. . . . . 6
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47 | 34, 41, 46 | mpjaodan 799 |
. . . . 5
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48 | simpr 110 |
. . . . 5
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49 | 47, 48 | breqtrrd 4057 |
. . . 4
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50 | 49 | ex 115 |
. . 3
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51 | 50 | rexlimdvva 2619 |
. 2
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52 | 2, 51 | mpd 13 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-coll 4144 ax-sep 4147 ax-nul 4155 ax-pow 4203 ax-pr 4238 ax-un 4464 ax-setind 4569 ax-iinf 4620 ax-cnex 7963 ax-resscn 7964 ax-1cn 7965 ax-1re 7966 ax-icn 7967 ax-addcl 7968 ax-addrcl 7969 ax-mulcl 7970 ax-mulrcl 7971 ax-addcom 7972 ax-mulcom 7973 ax-addass 7974 ax-mulass 7975 ax-distr 7976 ax-i2m1 7977 ax-0lt1 7978 ax-1rid 7979 ax-0id 7980 ax-rnegex 7981 ax-precex 7982 ax-cnre 7983 ax-pre-ltirr 7984 ax-pre-ltwlin 7985 ax-pre-lttrn 7986 ax-pre-apti 7987 ax-pre-ltadd 7988 ax-pre-mulgt0 7989 ax-pre-mulext 7990 ax-arch 7991 ax-caucvg 7992 |
This theorem depends on definitions: df-bi 117 df-stab 832 df-dc 836 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-xor 1387 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-nel 2460 df-ral 2477 df-rex 2478 df-reu 2479 df-rmo 2480 df-rab 2481 df-v 2762 df-sbc 2986 df-csb 3081 df-dif 3155 df-un 3157 df-in 3159 df-ss 3166 df-nul 3447 df-if 3558 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-int 3871 df-iun 3914 df-br 4030 df-opab 4091 df-mpt 4092 df-tr 4128 df-id 4324 df-po 4327 df-iso 4328 df-iord 4397 df-on 4399 df-ilim 4400 df-suc 4402 df-iom 4623 df-xp 4665 df-rel 4666 df-cnv 4667 df-co 4668 df-dm 4669 df-rn 4670 df-res 4671 df-ima 4672 df-iota 5215 df-fun 5256 df-fn 5257 df-f 5258 df-f1 5259 df-fo 5260 df-f1o 5261 df-fv 5262 df-riota 5873 df-ov 5921 df-oprab 5922 df-mpo 5923 df-1st 6193 df-2nd 6194 df-recs 6358 df-frec 6444 df-1o 6469 df-2o 6470 df-er 6587 df-en 6795 df-sup 7043 df-pnf 8056 df-mnf 8057 df-xr 8058 df-ltxr 8059 df-le 8060 df-sub 8192 df-neg 8193 df-reap 8594 df-ap 8601 df-div 8692 df-inn 8983 df-2 9041 df-3 9042 df-4 9043 df-n0 9241 df-z 9318 df-uz 9593 df-q 9685 df-rp 9720 df-fz 10075 df-fzo 10209 df-fl 10339 df-mod 10394 df-seqfrec 10519 df-exp 10610 df-cj 10986 df-re 10987 df-im 10988 df-rsqrt 11142 df-abs 11143 df-dvds 11931 df-gcd 12080 df-prm 12246 |
This theorem is referenced by: 2irrexpqap 15110 |
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