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Mirrors > Home > ILE Home > Th. List > simplbi | GIF version |
Description: Deduction eliminating a conjunct. (Contributed by NM, 27-May-1998.) |
Ref | Expression |
---|---|
simplbi.1 | ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
Ref | Expression |
---|---|
simplbi | ⊢ (𝜑 → 𝜓) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simplbi.1 | . . 3 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) | |
2 | 1 | biimpi 118 | . 2 ⊢ (𝜑 → (𝜓 ∧ 𝜒)) |
3 | 2 | simpld 110 | 1 ⊢ (𝜑 → 𝜓) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 102 ↔ wb 103 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 |
This theorem depends on definitions: df-bi 115 |
This theorem is referenced by: pm5.62dc 886 3simpa 935 xoror 1310 anxordi 1331 sbidm 1772 reurex 2567 eqimss 3051 eldifi 3094 inss1 3186 sopo 4068 wefr 4113 ordtr 4133 opelxp1 4395 relop 4504 funmo 4937 funrel 4939 fnfun 5016 ffn 5066 f1f 5112 f1of1 5145 f1ofo 5153 isof1o 5467 eqopi 5818 1st2nd2 5821 reldmtpos 5891 swoer 6157 ecopover 6227 ecopoverg 6230 fnfi 6388 dfplpq2 6544 enq0ref 6623 cauappcvgprlemopl 6836 cauappcvgprlemdisj 6841 caucvgprlemopl 6859 caucvgprlemdisj 6864 caucvgprprlemopl 6887 caucvgprprlemopu 6889 caucvgprprlemdisj 6892 peano1nnnn 7020 axrnegex 7045 ltxrlt 7178 1nn 8050 zre 8355 nnssz 8368 ixxss1 8927 ixxss2 8928 ixxss12 8929 iccss2 8967 rge0ssre 9000 elfzuz 9041 uzdisj 9110 nn0disj 9148 frecuzrdgfn 9414 prmnn 10492 prmuz2 10512 oddpwdc 10552 sqpweven 10553 2sqpwodd 10554 bj-indint 10726 bj-inf2vnlem2 10766 |
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