Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > addcani | Unicode version |
Description: Cancellation law for addition. Theorem I.1 of [Apostol] p. 18. (Contributed by NM, 27-Oct-1999.) (Revised by Scott Fenton, 3-Jan-2013.) |
Ref | Expression |
---|---|
addcani.1 | |
addcani.2 | |
addcani.3 |
Ref | Expression |
---|---|
addcani |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | addcani.1 | . 2 | |
2 | addcani.2 | . 2 | |
3 | addcani.3 | . 2 | |
4 | addcan 8056 | . 2 | |
5 | 1, 2, 3, 4 | mp3an 1319 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 104 wceq 1335 wcel 2128 (class class class)co 5825 cc 7731 caddc 7736 |
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 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2139 ax-resscn 7825 ax-1cn 7826 ax-icn 7828 ax-addcl 7829 ax-addrcl 7830 ax-mulcl 7831 ax-addcom 7833 ax-addass 7835 ax-distr 7837 ax-i2m1 7838 ax-0id 7841 ax-rnegex 7842 ax-cnre 7844 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1338 df-nf 1441 df-sb 1743 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ral 2440 df-rex 2441 df-v 2714 df-un 3106 df-in 3108 df-ss 3115 df-sn 3566 df-pr 3567 df-op 3569 df-uni 3774 df-br 3967 df-iota 5136 df-fv 5179 df-ov 5828 |
This theorem is referenced by: negdii 8160 fsumrelem 11372 |
Copyright terms: Public domain | W3C validator |