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Mirrors > Home > ILE Home > Th. List > addcan2i | Unicode version |
Description: Cancellation law for addition. Theorem I.1 of [Apostol] p. 18. (Contributed by NM, 14-May-2003.) (Revised by Scott Fenton, 3-Jan-2013.) |
Ref | Expression |
---|---|
addcani.1 | |
addcani.2 | |
addcani.3 |
Ref | Expression |
---|---|
addcan2i |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | addcani.1 | . 2 | |
2 | addcani.2 | . 2 | |
3 | addcani.3 | . 2 | |
4 | addcan2 8075 | . 2 | |
5 | 1, 2, 3, 4 | mp3an 1327 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 104 wceq 1343 wcel 2136 (class class class)co 5841 cc 7747 caddc 7752 |
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 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-ext 2147 ax-resscn 7841 ax-1cn 7842 ax-icn 7844 ax-addcl 7845 ax-addrcl 7846 ax-mulcl 7847 ax-addcom 7849 ax-addass 7851 ax-distr 7853 ax-i2m1 7854 ax-0id 7857 ax-rnegex 7858 ax-cnre 7860 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2296 df-ral 2448 df-rex 2449 df-v 2727 df-un 3119 df-in 3121 df-ss 3128 df-sn 3581 df-pr 3582 df-op 3584 df-uni 3789 df-br 3982 df-iota 5152 df-fv 5195 df-ov 5844 |
This theorem is referenced by: (None) |
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