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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 12542 | . 2 ⊢ 5 ∈ ℕ0 | |
| 2 | 4nn0 12541 | . 2 ⊢ 4 ∈ ℕ0 | |
| 3 | df-5 12324 | . 2 ⊢ 5 = (4 + 1) | |
| 4 | 5t4e20 12836 | . . 3 ⊢ (5 · 4) = ;20 | |
| 5 | 2nn0 12539 | . . . 4 ⊢ 2 ∈ ℕ0 | |
| 6 | 5 | dec0u 12755 | . . 3 ⊢ (;10 · 2) = ;20 |
| 7 | 4, 6 | eqtr4i 2792 | . 2 ⊢ (5 · 4) = (;10 · 2) |
| 8 | dfdec10 12732 | . . 3 ⊢ ;25 = ((;10 · 2) + 5) | |
| 9 | 8 | eqcomi 2775 | . 2 ⊢ ((;10 · 2) + 5) = ;25 |
| 10 | 1, 2, 3, 7, 9 | 4t3lem 12831 | 1 ⊢ (5 · 5) = ;25 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7423 0cc0 11118 1c1 11119 + caddc 11121 · cmul 11123 2c2 12313 4c4 12315 5c5 12316 ;cdc 12729 |
| 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-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 |
| 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-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-pnf 11263 df-mnf 11264 df-ltxr 11266 df-sub 11461 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-dec 12730 |
| This theorem is used by: 2exp16 17175 prmlem1 17192 prmlem2 17205 1259lem1 17216 1259lem4 17219 2503lem1 17222 2503lem2 17223 4001lem1 17226 4001prm 17230 3lexlogpow2ineq2 42867 3lexlogpow5ineq5 42868 sqn5i 43087 sq5 43096 resqrtvalex 44412 imsqrtvalex 44413 fmtno5lem2 48347 flsqrt5 48387 |
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