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Mirrors > Home > MPE Home > Th. List > 5t5e25 | Structured version Visualization version GIF version |
Description: 5 times 5 equals 25. (Contributed by Mario Carneiro, 19-Apr-2015.) (Revised by AV, 6-Sep-2021.) |
Ref | Expression |
---|---|
5t5e25 | ⊢ (5 · 5) = ;25 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 5nn0 12474 | . 2 ⊢ 5 ∈ ℕ0 | |
2 | 4nn0 12473 | . 2 ⊢ 4 ∈ ℕ0 | |
3 | df-5 12260 | . 2 ⊢ 5 = (4 + 1) | |
4 | 5t4e20 12761 | . . 3 ⊢ (5 · 4) = ;20 | |
5 | 2nn0 12471 | . . . 4 ⊢ 2 ∈ ℕ0 | |
6 | 5 | dec0u 12680 | . . 3 ⊢ (;10 · 2) = ;20 |
7 | 4, 6 | eqtr4i 2762 | . 2 ⊢ (5 · 4) = (;10 · 2) |
8 | dfdec10 12662 | . . 3 ⊢ ;25 = ((;10 · 2) + 5) | |
9 | 8 | eqcomi 2740 | . 2 ⊢ ((;10 · 2) + 5) = ;25 |
10 | 1, 2, 3, 7, 9 | 4t3lem 12756 | 1 ⊢ (5 · 5) = ;25 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1541 (class class class)co 7393 0cc0 11092 1c1 11093 + caddc 11095 · cmul 11097 2c2 12249 4c4 12251 5c5 12252 ;cdc 12659 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5292 ax-nul 5299 ax-pow 5356 ax-pr 5420 ax-un 7708 ax-resscn 11149 ax-1cn 11150 ax-icn 11151 ax-addcl 11152 ax-addrcl 11153 ax-mulcl 11154 ax-mulrcl 11155 ax-mulcom 11156 ax-addass 11157 ax-mulass 11158 ax-distr 11159 ax-i2m1 11160 ax-1ne0 11161 ax-1rid 11162 ax-rnegex 11163 ax-rrecex 11164 ax-cnre 11165 ax-pre-lttri 11166 ax-pre-lttrn 11167 ax-pre-ltadd 11168 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3774 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4523 df-pw 4598 df-sn 4623 df-pr 4625 df-op 4629 df-uni 4902 df-iun 4992 df-br 5142 df-opab 5204 df-mpt 5225 df-tr 5259 df-id 5567 df-eprel 5573 df-po 5581 df-so 5582 df-fr 5624 df-we 5626 df-xp 5675 df-rel 5676 df-cnv 5677 df-co 5678 df-dm 5679 df-rn 5680 df-res 5681 df-ima 5682 df-pred 6289 df-ord 6356 df-on 6357 df-lim 6358 df-suc 6359 df-iota 6484 df-fun 6534 df-fn 6535 df-f 6536 df-f1 6537 df-fo 6538 df-f1o 6539 df-fv 6540 df-riota 7349 df-ov 7396 df-oprab 7397 df-mpo 7398 df-om 7839 df-2nd 7958 df-frecs 8248 df-wrecs 8279 df-recs 8353 df-rdg 8392 df-er 8686 df-en 8923 df-dom 8924 df-sdom 8925 df-pnf 11232 df-mnf 11233 df-ltxr 11235 df-sub 11428 df-nn 12195 df-2 12257 df-3 12258 df-4 12259 df-5 12260 df-6 12261 df-7 12262 df-8 12263 df-9 12264 df-n0 12455 df-dec 12660 |
This theorem is referenced by: 2exp16 17006 prmlem1 17023 prmlem2 17035 1259lem1 17046 1259lem4 17049 2503lem1 17052 2503lem2 17053 4001lem1 17056 4001prm 17060 3lexlogpow2ineq2 40729 3lexlogpow5ineq5 40730 sqn5i 40985 resqrtvalex 42167 imsqrtvalex 42168 fmtno5lem2 45994 flsqrt5 46034 |
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