Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > an42 | Unicode version |
Description: Rearrangement of 4 conjuncts. (Contributed by NM, 7-Feb-1996.) |
Ref | Expression |
---|---|
an42 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | an4 520 | . 2 | |
2 | ancom 253 | . . 3 | |
3 | 2 | anbi2i 430 | . 2 |
4 | 1, 3 | bitri 173 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 97 wb 98 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 |
This theorem depends on definitions: df-bi 110 |
This theorem is referenced by: rnlem 883 distrnqg 6485 distrnq0 6557 prcdnql 6582 prcunqu 6583 |
Copyright terms: Public domain | W3C validator |