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| Mirrors > Home > ILE Home > Th. List > sqrt2irraplemnn | Unicode version | ||
| Description: Lemma for sqrt2irrap 12986. The square root of 2 is apart from a positive rational expressed as a numerator and denominator. (Contributed by Jim Kingdon, 2-Oct-2021.) |
| Ref | Expression |
|---|---|
| sqrt2irraplemnn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 109 |
. . . . . . 7
| |
| 2 | 1 | nnsqcld 11154 |
. . . . . 6
|
| 3 | 2 | nnred 9327 |
. . . . 5
|
| 4 | 0red 8334 |
. . . . . 6
| |
| 5 | 2 | nngt0d 9358 |
. . . . . 6
|
| 6 | 4, 3, 5 | ltled 8453 |
. . . . 5
|
| 7 | simpr 110 |
. . . . . . 7
| |
| 8 | 7 | nnsqcld 11154 |
. . . . . 6
|
| 9 | 8 | nnrpd 10113 |
. . . . 5
|
| 10 | 3, 6, 9 | sqrtdivd 11958 |
. . . 4
|
| 11 | 1 | nnred 9327 |
. . . . . 6
|
| 12 | 1 | nngt0d 9358 |
. . . . . . 7
|
| 13 | 4, 11, 12 | ltled 8453 |
. . . . . 6
|
| 14 | 11, 13 | sqrtsqd 11955 |
. . . . 5
|
| 15 | 7 | nnred 9327 |
. . . . . 6
|
| 16 | 7 | nngt0d 9358 |
. . . . . . 7
|
| 17 | 4, 15, 16 | ltled 8453 |
. . . . . 6
|
| 18 | 15, 17 | sqrtsqd 11955 |
. . . . 5
|
| 19 | 14, 18 | oveq12d 6106 |
. . . 4
|
| 20 | 10, 19 | eqtrd 2271 |
. . 3
|
| 21 | sqne2sq 12983 |
. . . . . 6
| |
| 22 | 2 | nncnd 9328 |
. . . . . . . 8
|
| 23 | 2cnd 9387 |
. . . . . . . 8
| |
| 24 | 8 | nncnd 9328 |
. . . . . . . 8
|
| 25 | 8 | nnap0d 9360 |
. . . . . . . 8
|
| 26 | 22, 23, 24, 25 | divmulap3d 9164 |
. . . . . . 7
|
| 27 | 26 | necon3bid 2461 |
. . . . . 6
|
| 28 | 21, 27 | mpbird 167 |
. . . . 5
|
| 29 | 2 | nnzd 9779 |
. . . . . . 7
|
| 30 | znq 10041 |
. . . . . . 7
| |
| 31 | 29, 8, 30 | syl2anc 415 |
. . . . . 6
|
| 32 | 2z 9684 |
. . . . . . 7
| |
| 33 | zq 10043 |
. . . . . . 7
| |
| 34 | 32, 33 | mp1i 10 |
. . . . . 6
|
| 35 | qapne 10056 |
. . . . . 6
| |
| 36 | 31, 34, 35 | syl2anc 415 |
. . . . 5
|
| 37 | 28, 36 | mpbird 167 |
. . . 4
|
| 38 | qre 10042 |
. . . . . 6
| |
| 39 | 31, 38 | syl 14 |
. . . . 5
|
| 40 | 8 | nnred 9327 |
. . . . . . 7
|
| 41 | 8 | nngt0d 9358 |
. . . . . . 7
|
| 42 | 3, 40, 5, 41 | divgt0d 9274 |
. . . . . 6
|
| 43 | 4, 39, 42 | ltled 8453 |
. . . . 5
|
| 44 | 2re 9384 |
. . . . . 6
| |
| 45 | 44 | a1i 9 |
. . . . 5
|
| 46 | 0le2 9404 |
. . . . . 6
| |
| 47 | 46 | a1i 9 |
. . . . 5
|
| 48 | sqrt11ap 11827 |
. . . . 5
| |
| 49 | 39, 43, 45, 47, 48 | syl22anc 1279 |
. . . 4
|
| 50 | 37, 49 | mpbird 167 |
. . 3
|
| 51 | 20, 50 | eqbrtrrd 4155 |
. 2
|
| 52 | nnz 9675 |
. . . . 5
| |
| 53 | znq 10041 |
. . . . 5
| |
| 54 | 52, 53 | sylan 283 |
. . . 4
|
| 55 | qcn 10051 |
. . . 4
| |
| 56 | 54, 55 | syl 14 |
. . 3
|
| 57 | sqrt2re 12968 |
. . . . 5
| |
| 58 | 57 | recni 8345 |
. . . 4
|
| 59 | 58 | a1i 9 |
. . 3
|
| 60 | apsym 8943 |
. . 3
| |
| 61 | 56, 59, 60 | syl2anc 415 |
. 2
|
| 62 | 51, 61 | mpbid 147 |
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 ax-cnex 8277 ax-resscn 8278 ax-1cn 8279 ax-1re 8280 ax-icn 8281 ax-addcl 8282 ax-addrcl 8283 ax-mulcl 8284 ax-mulrcl 8285 ax-addcom 8286 ax-mulcom 8287 ax-addass 8288 ax-mulass 8289 ax-distr 8290 ax-i2m1 8291 ax-0lt1 8292 ax-1rid 8293 ax-0id 8294 ax-rnegex 8295 ax-precex 8296 ax-cnre 8297 ax-pre-ltirr 8298 ax-pre-ltwlin 8299 ax-pre-lttrn 8300 ax-pre-apti 8301 ax-pre-ltadd 8302 ax-pre-mulgt0 8303 ax-pre-mulext 8304 ax-arch 8305 ax-caucvg 8306 |
| This proof depends on definitions: df-bi 117 df-stab 843 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-xor 1425 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-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 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-if 3639 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-id 4440 df-po 4443 df-iso 4444 df-iord 4513 df-on 4515 df-ilim 4516 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-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-recs 6580 df-frec 6666 df-1o 6691 df-2o 6692 df-er 6811 df-en 7028 df-sup 7331 df-pnf 8369 df-mnf 8370 df-xr 8371 df-ltxr 8372 df-le 8373 df-sub 8507 df-neg 8508 df-reap 8912 df-ap 8919 df-div 9012 df-inn 9315 df-2 9373 df-3 9374 df-4 9375 df-n0 9576 df-z 9657 df-uz 9939 df-q 10037 df-rp 10073 df-fz 10430 df-fzo 10568 df-fl 10723 df-mod 10782 df-seqfrec 10907 df-exp 10998 df-cj 11630 df-re 11631 df-im 11632 df-rsqrt 11787 df-abs 11788 df-dvds 12581 df-gcd 12757 df-prm 12912 |
| This theorem is used by: sqrt2irrap 12986 |
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