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| Mirrors > Home > MPE Home > Th. List > 7p3e10 | Structured version Visualization version GIF version | ||
| Description: 7 + 3 = 10. (Contributed by NM, 5-Feb-2007.) (Revised by Stanislas Polu, 7-Apr-2020.) (Revised by AV, 6-Sep-2021.) |
| Ref | Expression |
|---|---|
| 7p3e10 | ⊢ (7 + 3) = ;10 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-3 12239 | . . . 4 ⊢ 3 = (2 + 1) | |
| 2 | 1 | oveq2i 7372 | . . 3 ⊢ (7 + 3) = (7 + (2 + 1)) |
| 3 | 7cn 12269 | . . . 4 ⊢ 7 ∈ ℂ | |
| 4 | 2cn 12250 | . . . 4 ⊢ 2 ∈ ℂ | |
| 5 | ax-1cn 11090 | . . . 4 ⊢ 1 ∈ ℂ | |
| 6 | 3, 4, 5 | addassi 11149 | . . 3 ⊢ ((7 + 2) + 1) = (7 + (2 + 1)) |
| 7 | 2, 6 | eqtr4i 2763 | . 2 ⊢ (7 + 3) = ((7 + 2) + 1) |
| 8 | 7p2e9 12331 | . . 3 ⊢ (7 + 2) = 9 | |
| 9 | 8 | oveq1i 7371 | . 2 ⊢ ((7 + 2) + 1) = (9 + 1) |
| 10 | 9p1e10 12640 | . 2 ⊢ (9 + 1) = ;10 | |
| 11 | 7, 9, 10 | 3eqtri 2764 | 1 ⊢ (7 + 3) = ;10 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 (class class class)co 7361 0cc0 11032 1c1 11033 + caddc 11035 2c2 12230 3c3 12231 7c7 12235 9c9 12237 ;cdc 12638 |
| 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 2709 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-resscn 11089 ax-1cn 11090 ax-icn 11091 ax-addcl 11092 ax-addrcl 11093 ax-mulcl 11094 ax-mulrcl 11095 ax-mulcom 11096 ax-addass 11097 ax-mulass 11098 ax-distr 11099 ax-i2m1 11100 ax-1ne0 11101 ax-1rid 11102 ax-rnegex 11103 ax-rrecex 11104 ax-cnre 11105 ax-pre-lttri 11106 ax-pre-lttrn 11107 ax-pre-ltadd 11108 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-ov 7364 df-om 7812 df-2nd 7937 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11175 df-mnf 11176 df-ltxr 11178 df-nn 12169 df-2 12238 df-3 12239 df-4 12240 df-5 12241 df-6 12242 df-7 12243 df-8 12244 df-9 12245 df-dec 12639 |
| This theorem is referenced by: 7p4e11 12714 1259lem4 17098 2503lem2 17102 2503lem3 17103 4001lem4 17108 log2ublem3 26928 log2ub 26929 ex-decpmul 42755 127prm 48077 evengpoap3 48290 |
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