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| Mirrors > Home > MPE Home > Th. List > ex-sqrt | Structured version Visualization version GIF version | ||
| Description: Example for df-sqrt 15197. (Contributed by AV, 4-Sep-2021.) |
| Ref | Expression |
|---|---|
| ex-sqrt | ⊢ (√‘;25) = 5 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ex-exp 30520 | . . . 4 ⊢ ((5↑2) = ;25 ∧ (-3↑-2) = (1 / 9)) | |
| 2 | 1 | simpli 483 | . . 3 ⊢ (5↑2) = ;25 |
| 3 | 2 | fveq2i 6843 | . 2 ⊢ (√‘(5↑2)) = (√‘;25) |
| 4 | 5re 12268 | . . 3 ⊢ 5 ∈ ℝ | |
| 5 | 0re 11146 | . . . 4 ⊢ 0 ∈ ℝ | |
| 6 | 5pos 12290 | . . . 4 ⊢ 0 < 5 | |
| 7 | 5, 4, 6 | ltleii 11269 | . . 3 ⊢ 0 ≤ 5 |
| 8 | sqrtsq 15231 | . . 3 ⊢ ((5 ∈ ℝ ∧ 0 ≤ 5) → (√‘(5↑2)) = 5) | |
| 9 | 4, 7, 8 | mp2an 693 | . 2 ⊢ (√‘(5↑2)) = 5 |
| 10 | 3, 9 | eqtr3i 2761 | 1 ⊢ (√‘;25) = 5 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 class class class wbr 5085 ‘cfv 6498 (class class class)co 7367 ℝcr 11037 0cc0 11038 1c1 11039 ≤ cle 11180 -cneg 11378 / cdiv 11807 2c2 12236 3c3 12237 5c5 12239 9c9 12243 ;cdc 12644 ↑cexp 14023 √csqrt 15195 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-pre-sup 11116 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-sup 9355 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 df-9 12251 df-n0 12438 df-z 12525 df-dec 12645 df-uz 12789 df-rp 12943 df-seq 13964 df-exp 14024 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 |
| This theorem is referenced by: (None) |
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