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Mirrors > Home > ILE Home > Th. List > 4p2e6 | Unicode version |
Description: 4 + 2 = 6. (Contributed by NM, 11-May-2004.) |
Ref | Expression |
---|---|
4p2e6 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-2 8747 | . . . . 5 | |
2 | 1 | oveq2i 5753 | . . . 4 |
3 | 4cn 8766 | . . . . 5 | |
4 | ax-1cn 7681 | . . . . 5 | |
5 | 3, 4, 4 | addassi 7742 | . . . 4 |
6 | 2, 5 | eqtr4i 2141 | . . 3 |
7 | df-5 8750 | . . . 4 | |
8 | 7 | oveq1i 5752 | . . 3 |
9 | 6, 8 | eqtr4i 2141 | . 2 |
10 | df-6 8751 | . 2 | |
11 | 9, 10 | eqtr4i 2141 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1316 (class class class)co 5742 c1 7589 caddc 7591 c2 8739 c4 8741 c5 8742 c6 8743 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 ax-resscn 7680 ax-1cn 7681 ax-1re 7682 ax-addrcl 7685 ax-addass 7690 |
This theorem depends on definitions: df-bi 116 df-3an 949 df-tru 1319 df-nf 1422 df-sb 1721 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-rex 2399 df-v 2662 df-un 3045 df-in 3047 df-ss 3054 df-sn 3503 df-pr 3504 df-op 3506 df-uni 3707 df-br 3900 df-iota 5058 df-fv 5101 df-ov 5745 df-2 8747 df-3 8748 df-4 8749 df-5 8750 df-6 8751 |
This theorem is referenced by: 4p3e7 8832 div4p1lem1div2 8941 4t4e16 9248 6gcd4e2 11610 |
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