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| Mirrors > Home > ILE Home > Th. List > mpbir3and | GIF version | ||
| Description: Detach a conjunction of truths in a biconditional. (Contributed by Mario Carneiro, 11-May-2014.) |
| Ref | Expression |
|---|---|
| mpbir3and.1 | ⊢ (𝜑 → 𝜒) |
| mpbir3and.2 | ⊢ (𝜑 → 𝜃) |
| mpbir3and.3 | ⊢ (𝜑 → 𝜏) |
| mpbir3and.4 | ⊢ (𝜑 → (𝜓 ↔ (𝜒 ∧ 𝜃 ∧ 𝜏))) |
| Ref | Expression |
|---|---|
| mpbir3and | ⊢ (𝜑 → 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpbir3and.1 | . . 3 ⊢ (𝜑 → 𝜒) | |
| 2 | mpbir3and.2 | . . 3 ⊢ (𝜑 → 𝜃) | |
| 3 | mpbir3and.3 | . . 3 ⊢ (𝜑 → 𝜏) | |
| 4 | 1, 2, 3 | 3jca 1208 | . 2 ⊢ (𝜑 → (𝜒 ∧ 𝜃 ∧ 𝜏)) |
| 5 | mpbir3and.4 | . 2 ⊢ (𝜑 → (𝜓 ↔ (𝜒 ∧ 𝜃 ∧ 𝜏))) | |
| 6 | 4, 5 | mpbird 167 | 1 ⊢ (𝜑 → 𝜓) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 105 ∧ w3a 1009 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This proof depends on definitions: df-bi 117 df-3an 1011 |
| This theorem is used by: ixxss1 10316 ixxss2 10317 ixxss12 10318 ubioc1 10341 lbico1 10342 lbicc2 10396 ubicc2 10397 lincmble 10416 elicod 10709 modqelico 10784 zmodfz 10796 modqmuladdim 10817 addmodid 10822 phicl2 13012 4sqlem12 13201 isstruct2r 13412 issubmd 13830 mndissubm 13831 submid 13833 subsubm 13839 0subm 13840 mhmima 13847 mhmeql 13848 issubgrpd2 14042 grpissubg 14046 subgintm 14050 nmzsubg 14062 eqger 14076 eqgcpbl 14080 ghmrn 14109 ghmpreima 14118 unitsubm 14475 subrgsubm 14591 subrgugrp 14597 subrgintm 14600 islssmd 14745 lsssubg 14763 islss4 14768 issubrgd 14838 lidlsubg 14872 2idlcpblrng 14909 mplsubgfi 15141 lmtopcnp 15400 xmeter 15586 tgqioo 15705 suplociccreex 15774 dedekindicc 15783 ivthinclemlopn 15786 ivthinclemuopn 15788 sin0pilem2 15933 pilem3 15934 coseq0q4123 15985 log2tlbndlog2 16139 uhgrissubgr 16621 egrsubgr 16623 uhgrspansubgr 16637 wlkres 16739 |
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