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| Mirrors > Home > MPE Home > Th. List > ex-sqrt | Structured version Visualization version GIF version | ||
| Description: Example for df-sqrt 15312. (Contributed by AV, 4-Sep-2021.) |
| Ref | Expression |
|---|---|
| ex-sqrt | ⊢ (√‘;25) = 5 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ex-exp 30838 | . . . 4 ⊢ ((5↑2) = ;25 ∧ (-3↑-2) = (1 / 9)) | |
| 2 | 1 | simpli 489 | . . 3 ⊢ (5↑2) = ;25 |
| 3 | 2 | fveq2i 6891 | . 2 ⊢ (√‘(5↑2)) = (√‘;25) |
| 4 | 5re 12346 | . . 3 ⊢ 5 ∈ ℝ | |
| 5 | 0re 11228 | . . . 4 ⊢ 0 ∈ ℝ | |
| 6 | 5pos 12371 | . . . 4 ⊢ 0 < 5 | |
| 7 | 5, 4, 6 | ltleii 11351 | . . 3 ⊢ 0 ≤ 5 |
| 8 | sqrtsq 15346 | . . 3 ⊢ ((5 ∈ ℝ ∧ 0 ≤ 5) → (√‘(5↑2)) = 5) | |
| 9 | 4, 7, 8 | mp2an 705 | . 2 ⊢ (√‘(5↑2)) = 5 |
| 10 | 3, 9 | eqtr3i 2791 | 1 ⊢ (√‘;25) = 5 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2146 class class class wbr 5114 ‘cfv 6543 (class class class)co 7423 ℝcr 11117 0cc0 11118 1c1 11119 ≤ cle 11262 -cneg 11460 / cdiv 11889 2c2 12313 3c3 12314 5c5 12316 9c9 12320 ;cdc 12729 ↑cexp 14117 √csqrt 15310 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 ax-cnex 11174 ax-resscn 11175 ax-1cn 11176 ax-icn 11177 ax-addcl 11178 ax-addrcl 11179 ax-mulcl 11180 ax-mulrcl 11181 ax-mulcom 11182 ax-addass 11183 ax-mulass 11184 ax-distr 11185 ax-i2m1 11186 ax-1ne0 11187 ax-1rid 11188 ax-rnegex 11189 ax-rrecex 11190 ax-cnre 11191 ax-pre-lttri 11192 ax-pre-lttrn 11193 ax-pre-ltadd 11194 ax-pre-mulgt0 11195 ax-pre-sup 11196 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5561 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-we 5621 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6309 df-ord 6370 df-on 6371 df-lim 6372 df-suc 6373 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7380 df-ov 7426 df-oprab 7427 df-mpo 7428 df-om 7872 df-2nd 7996 df-frecs 8287 df-wrecs 8318 df-recs 8367 df-rdg 8406 df-er 8703 df-en 8953 df-dom 8954 df-sdom 8955 df-sup 9412 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11461 df-neg 11462 df-div 11890 df-nn 12252 df-2 12321 df-3 12322 df-4 12323 df-5 12324 df-6 12325 df-7 12326 df-8 12327 df-9 12328 df-n0 12523 df-z 12610 df-dec 12730 df-uz 12881 df-rp 13035 df-seq 14058 df-exp 14118 df-cj 15176 df-re 15177 df-im 15178 df-sqrt 15312 |
| This theorem is used by: (None) |
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