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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 12516 | . 2 ⊢ 5 ∈ ℕ0 | |
2 | 4nn0 12515 | . 2 ⊢ 4 ∈ ℕ0 | |
3 | df-5 12302 | . 2 ⊢ 5 = (4 + 1) | |
4 | 5t4e20 12803 | . . 3 ⊢ (5 · 4) = ;20 | |
5 | 2nn0 12513 | . . . 4 ⊢ 2 ∈ ℕ0 | |
6 | 5 | dec0u 12722 | . . 3 ⊢ (;10 · 2) = ;20 |
7 | 4, 6 | eqtr4i 2759 | . 2 ⊢ (5 · 4) = (;10 · 2) |
8 | dfdec10 12704 | . . 3 ⊢ ;25 = ((;10 · 2) + 5) | |
9 | 8 | eqcomi 2737 | . 2 ⊢ ((;10 · 2) + 5) = ;25 |
10 | 1, 2, 3, 7, 9 | 4t3lem 12798 | 1 ⊢ (5 · 5) = ;25 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1534 (class class class)co 7414 0cc0 11132 1c1 11133 + caddc 11135 · cmul 11137 2c2 12291 4c4 12293 5c5 12294 ;cdc 12701 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-resscn 11189 ax-1cn 11190 ax-icn 11191 ax-addcl 11192 ax-addrcl 11193 ax-mulcl 11194 ax-mulrcl 11195 ax-mulcom 11196 ax-addass 11197 ax-mulass 11198 ax-distr 11199 ax-i2m1 11200 ax-1ne0 11201 ax-1rid 11202 ax-rnegex 11203 ax-rrecex 11204 ax-cnre 11205 ax-pre-lttri 11206 ax-pre-lttrn 11207 ax-pre-ltadd 11208 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2937 df-nel 3043 df-ral 3058 df-rex 3067 df-reu 3373 df-rab 3429 df-v 3472 df-sbc 3776 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3964 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8718 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11274 df-mnf 11275 df-ltxr 11277 df-sub 11470 df-nn 12237 df-2 12299 df-3 12300 df-4 12301 df-5 12302 df-6 12303 df-7 12304 df-8 12305 df-9 12306 df-n0 12497 df-dec 12702 |
This theorem is referenced by: 2exp16 17053 prmlem1 17070 prmlem2 17082 1259lem1 17093 1259lem4 17096 2503lem1 17099 2503lem2 17100 4001lem1 17103 4001prm 17107 3lexlogpow2ineq2 41524 3lexlogpow5ineq5 41525 sqn5i 41853 resqrtvalex 43069 imsqrtvalex 43070 fmtno5lem2 46888 flsqrt5 46928 |
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