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| Mirrors > Home > MPE Home > Th. List > 3p2e5 | Structured version Visualization version GIF version | ||
| Description: 3 + 2 = 5. (Contributed by NM, 11-May-2004.) |
| Ref | Expression |
|---|---|
| 3p2e5 | ⊢ (3 + 2) = 5 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-2 12314 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7427 | . . . 4 ⊢ (3 + 2) = (3 + (1 + 1)) |
| 3 | 3cn 12333 | . . . . 5 ⊢ 3 ∈ ℂ | |
| 4 | ax-1cn 11169 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11230 | . . . 4 ⊢ ((3 + 1) + 1) = (3 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2791 | . . 3 ⊢ (3 + 2) = ((3 + 1) + 1) |
| 7 | df-4 12316 | . . . 4 ⊢ 4 = (3 + 1) | |
| 8 | 7 | oveq1i 7426 | . . 3 ⊢ (4 + 1) = ((3 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2791 | . 2 ⊢ (3 + 2) = (4 + 1) |
| 10 | df-5 12317 | . 2 ⊢ 5 = (4 + 1) | |
| 11 | 9, 10 | eqtr4i 2791 | 1 ⊢ (3 + 2) = 5 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7416 1c1 11112 + caddc 11114 2c2 12306 3c3 12307 4c4 12308 5c5 12309 |
| 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-ext 2737 ax-1cn 11169 ax-addcl 11171 ax-addass 11176 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-iota 6496 df-fv 6548 df-ov 7419 df-2 12314 df-3 12315 df-4 12316 df-5 12317 |
| This theorem is used by: 3p3e6 12403 fz0to5un2tp 13671 2exp5 17162 2exp16 17167 prmlem1a 17183 5prm 17185 prmlem2 17197 1259lem1 17208 1259lem4 17211 1259prm 17213 4001lem1 17218 4001lem4 17221 birthday 27148 ppiub 27397 bposlem6 27482 bposlem9 27485 2lgsoddprmlem3d 27606 ex-mod 30829 cyc3conja 33500 fib5 34819 hgt750lem2 35063 kur14lem8 35718 problem1 36170 235t711 43099 3cubeslem3l 43450 3cubeslem3r 43451 sin5tlem1 47643 sin5tlem5 47647 sin5t 47648 goldrasin 47652 fmtnorec2 48328 fmtno5lem4 48341 257prm 48346 fmtno4nprmfac193 48359 41prothprmlem2 48403 linevalexample 49208 ackval2012 49504 ackval3012 49505 |
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