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| Mirrors > Home > ILE Home > Th. List > baib | GIF version | ||
| Description: Move conjunction outside of biconditional. (Contributed by NM, 13-May-1999.) |
| Ref | Expression |
|---|---|
| baib.1 | ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
| Ref | Expression |
|---|---|
| baib | ⊢ (𝜓 → (𝜑 ↔ 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | baib.1 | . 2 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) | |
| 2 | ibar 301 | . 2 ⊢ (𝜓 → (𝜒 ↔ (𝜓 ∧ 𝜒))) | |
| 3 | 1, 2 | bitr4id 199 | 1 ⊢ (𝜓 → (𝜑 ↔ 𝜒)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: baibr 928 rbaib 929 ceqsrexbv 2947 elrab3 2973 rabsn 3755 elrint2 3989 frind 4472 fnres 5474 f1ompt 5827 fliftfun 5968 ovid 6169 brdifun 6793 xpcomco 7076 isacnm 7509 ltexprlemdisj 7917 xrlenlt 8334 reapval 8846 znnnlt1 9621 difrp 10021 elfz 10344 fzolb2 10485 elfzo3 10494 fzouzsplit 10511 bitsval2 12623 rpexp 12843 isghm3 13950 isabl2 14000 dfrhm2 14288 bastop1 14935 cnntr 15077 lmres 15100 tx1cn 15121 tx2cn 15122 xmetec 15289 lgsabs1 15899 |
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